Ippo is a high school student who works full time at his mother's fishing though. Because of this, he gets bullied on by the kids at his school. That's when his life turns around, when a professional boxer happens to be jogging along the way, and introduces Ippo to the world of boxing.

Ippo succeeds in catching 10 falling leaves, and is granted his first sparring session.

Ippo loses his first sparring session, but shows enough potential to be accepted into the gym.

Ippo practices shadow boxing.

Ippo trains for a rematch.

Ippo and Miyata face off in a rematch.

Ippo and Miyata are in the last round of the rematch

Ippo trains with Takamura and discovers the hardship of pro boxing.

Ippo takes the License Test and meets Mashiba.

Ippo and his opponent Yusuke train for Ippo's debut match.

Ippo defeats Yusuke via K.O.

Ippo fights and wins his second match via K.O.,After the fight he was befriended by Umezawa, his former bully.

Ippo and his opponent Jason prepare for the first match of the Rookie King Tournament.

Start of Ippo vs Jason match, both men exchange powerful punches but neither goes down.

Ippo defeats Jason via K.O. after a tough match.

Ippo watches the fight videos of Kobashi and Hayami, his future opponents.

Ippo joins Takamura, Kimura, and Aoki in a training camp near the beach.

Start of Ippo vs Kobashi match, Ippo is loosing by points because of Kobashi's strategy.

Kobashi abandoned his strategy and loses the match to Ippo via K.O.

Takamura wins the Japanese Middleweight Championship belt, Ippo trains with Aoki to counter Hayami's Shotgun punch.

Start of Ippo vs Hayami fight, Hayami takes the advantage during the early rounds.

Ippo defeats Hayami via K.O. Ippo's training with Aoki and Kimura's help Ippo win the match.

Ippos day off. Miyata and Mashiba face off.

Miyata and Mashiba continues to fight. Ippo is angred by the outcome.

Ippo trains for Mashiba flicker jabs.

The first episode of the second season starts with mostly the match of Miyata against Arnie. Shows Kimura sparring with Miyata and then the Weigh-in. Then the match is about to start, Miyata and Arnie are ready for battle!

The second episode of the second season starts off on Miyata's OPBF Title Match. With it Arnie showing his special weapon called Bloody Cross and Miyata throwing strong counters to escape from this techniques strange name 'Bloody Cross '.

The third episode of the second season continues on the OPBF Match with Miyata against Arnie. With almost everytime Miyata is about to fall down from hits of the champ, but then he tooks big step and takes the OPBF Champion Arnie Gregory to the ground. The count starts, and the episode ends.

Miyata Ichirou wins the title of OPBF Featherweight Champion, but now Ippo feels even further from him than before. After his match, Date Eiji's second Title Match against Ricardo Martinez is officially finalized, after seven years. As they look at the boxing magazine, the coach comes in and says that Ricardo Martinez has requested a sparring match with Ippo.

Ippo comes to the sparring match against Ricardo Martinez as focused as if it were a real match, and he is determined to land at least one hit on the World champion. However, Martinez's lightning-fast lefts and instant reflexes are like nothing Ippo's ever seen. Will Ippo's Dempsey Roll work on the strongest man in the world?

After seven years Eiji Date will finally have his rematch with Ricardo Martinez, the world featherweight champion. The title match begins, Date starts the match off with two lefts, the second landing on the champion's face.

The world featherweight title match has begun, in the first round, neither Date or Martinez use their rights. The second round is more exciting than the first. In the third round, Martinez steps it up and becomes more aggressive.

Date tries the heart-breaker shot but Martinez blocks it with his elbow breaking Date's hand. By the end of the round Date's hand, jaw, and ribs are broken. After ten rounds the match has a winner.

The Kamogawa Boxing Gym gets a new recruit: Itagaki Manabu, the inter-high national runner up who happens to idolizes Ippo. Meanwhile, Ippo is hit with a blast from the past when he is challenged by Hammer Nao, his former junior who now seeks to defeat him and take his belt.

Ippo is reluctant to fight Nao, who used to be his junior and friend. Nao faces his fear of fighting Ippo and resolves to let Ippo know how strong he has become firsthand. Who will come out on top?

The match begins. Ippo goes on an all-out offensive, hoping to end this match as soon as possible, but Nao refuses to stay down until he has shown Ippo his new power! Nao makes use of relentless and forceful body blows, pushing Ippo into a corner.

Ippo lowers his guard and it becomes a blow-for-blow confrontation, with Ippo winning out and knocking Nao down. Nao reflects on his past with Ippo as he gets up once more, only to be ultimately knocked out. Ippo remarks that Nao hasn't felt the pain of losing yet, and now that he has, he will become much stronger.

Takamura and Ippo's next matches are finalized. Itagaki has a jarring introduction to the world of pro boxing when he fights a boxer desperate enough to cheat, and Kimura's Dragon Fish Blow can't seem to get the job done. To top it all off, Takamura has botched his weight management due to Aoki's revenge and is in no shape to fight! Can Takamura defeat the Filipino Middleweight Champion?

Takamura's light punches and decreased stamina have put him at a great disadvantage, but when he sees a familiar and taunting face, his anger allows him to fight back. Bryan Hawk finally makes his appearance - but his behavior is far from that of a true champion...

Takamura attacks Hawk in a fit of anger, but Hawk effortlessly blocks his attack, stunning everyone. The Kamogawa gang reviews Hawk's previous matches and learn how terrifyingly strong he is. When Ippo and friends visit Takamura's home out of curiousity, Takamura's checkered past with his family is revealed.

Takamura resolves to reach the top of the world for the sake of his friends and for the coach. In order to do so, he must lose 20 kilos (44 lbs) before the match. Takamura starves and dehydrates himself to accomplish his goal, but will he make it through this bout of extreme weight control?

The coach and Nagi see Hawk's devastating boxing firsthand. Takamura barely makes weight and is taunted by Hawk for his skinny appearance. Later, when a press conference turns into utter chaos, all of Japan roots for Takamura to beat Hawk. Ippo makes a risky promise to Takamura, but will he be able to fulfill it?

Ippo manages to win his title defense with a 1-round KO as per his promise and rushes back to see Takamura. There, he sees all of the Japanese champions and former champions, including Eiji and Sendo,encouraging Takamura to do his best. After a flashy entrance ceremony, the long-awaited world title match finally begins!

Takamura takes the pace at the beginning of the match, but Hawk unveils his unique style that allows him to dodge and attack simultaneously! After being caught off-guard and taking a beating in the first round, Takamura uses his speedy footwork to circle around Hawk, but Hawk outspeeds him and knocks him down. Can Takamura learn to counter Hawk's wild fighting style in time?

Takamura is outsped once more and knocked unconscious, but manages to recover just in time. Relying on what he has learned from the coach, he knocks down Hawk and discovers his weakness! An all-out brawl ensues and Takamura comes out on top! Takamura begins the next round with a KO proclamation - but can he really end the fight in this round?

Despite using all of his remaining energy, Takamura cannot break through Hawk's defense and is left with no way to fight back. Hawk's wild bloodlust comes out, and he aims to kill Takamura in the ring! With nothing supporting him but the love of his friends and the coach's help, can Takamura mount a comeback?

Takamura is knocked unconscious while standing yet again, and remembers all of the pain, suffering, and disrespect he faced for the sake of this match. Realizing that his pain is because of Bryan Hawk, he begins fighting back, this time driven purely by instinct and anger. Takamura turns the table, but the champion on the ropes has one last trick up his sleeve...

After a gruesome fight, Takamura becomes the WBC Jr. Middleweight World Champion, and orders a giant bronze statue of himself to celebrate. Itagaki wins his first official match, and Ippo meets Itagaki's family - and learns how terrifying a simple pun can be!

Makunouchi Ippo defeated Sendou Takeshi with his Dempsey Roll and became the Japanese Featherweight Champion! Reflecting on his recent title defenses, Ippo reminisces about his late father Kazuo, and his own desires to be as strong as his dad was.

With his title on the line, Ippo goes toe-to-toe with Shimabukuro. The battle is so intense Ippo doesn’t even have room to breathe, to the point he starts turning blue! With Ippo struggling at the “bottom of the ocean,” has Shimabukuro met his goal of destroying the Dempsey Roll?!

Ippo emerges victorious after a vicious war with Shimabukuro, and Itagaki’s sister Nanako comes to pay him a visit at home while he rests. Meanwhile, Aoki is busy preparing for his first ever title match against the lightweight champion Imae Katsutaka.

After an infuriating face-off with Imae, Aoki turns to his girlfriend Tomiko for comfort. Meanwhile, Imae chooses to focus all his energy on boxing and his upcoming title defense, rebuffing his former girlfriend Sachiko’s attempts to rekindle their romance. Will Tomiko’s support carry Aoki to victory, or will Imae’s intense focus keep the belt on his waist?

Imae’s long hours of research quickly pay off as he decimates Aoki by countering every one of his trademark attacks, even the Frog Punch! As Tomiko watches on and the crowd awaits the inevitable knockout, Aoki does something that leaves the whole arena in shock.

Imae, cowed by Aoki’s fearsome new move, suddenly realizes what it is Aoki has that he lacks. Summoning up all the energy he has left, he faces his challenger once again. As the fight drags on, will Imae retain his championship, or will Aoki finally reach the belt?

Sendou Takeshi, the "Naniwa Tiger," returns to the ring! But it's his sparring partner, Sawamura Ryuuhei, who knocks Ippo for a loop when he calls the Dempsey Roll a "clumsy technique" and declares he's gunning for the Featherweight Title!

Ippo's next title defense is confirmed to be against Sawamura Ryuuhei, and after realizing the Dempsey Roll is vulnerable to counter punches, Ippo realizes he doesn't stand a chance. His only option is to somehow evolve the Dempsey Roll into a more effective move, but as he mulls over exactly how to do it, a surprisingly familiar face appears in front of him.

Volg has return to Japan to take back his boxing gloves from Ippo. He hopes to travel to America, but with no contacts there he must rely on Coach Kamogawa to introduce him to someone. The gang at the gym asks Volg to spar with Ippo to help him prepare for the Sawamura fight, but after such a long time away from the ring, can the Russian get in fighting shape in time?

As the fight with Sawamura draws near, Ippo has pinned all his hopes on the newly-evolved Dempsey Roll, to the point where practicing it has left him worn out and overtrained. Left with a dire warning from his massage therapist about the toll his new move is taking, will Ippo be able to perfect his technique in time for the fight?!

Sawamura's blatant fouls and bullet-like left jabs leave Ippo scrambling to establish some kind of rhythm. He stubbornly forces his way inside, but is he charging headfirst into a trap?

Ippo mounts a desperate, full frontal assault as Sawamura continues to toy with him. Determined to take back the pace, Ippo begins to dodge the Bullets and get into a rhythm as he strikes back. Almost naturally he falls into the Dempsey Roll pattern, and Sawamura makes his move!

The evolved Dempsey Roll saved Ippo from the jaws of defeat. Bolstered by the cheering fans, he chases down Sawamura. But with Sawamura more willing than ever to risk an illegal move, will Ippo's last bit of energy be enough to defend the title?

Ippo visits Dr. Yamaguchi and learns the full extent of the damage caused by the evolved Dempsey Roll. As he walks home on crutches, Umezawa drives by and gives him a lift. Ippo's relief is short-lives, however, as Umezawa suddenly reveals he plans to quit working on the Makunouchi fishing boat!

To celebrate Ippo's win and recovery, the whole gym gang hops aboard the Makunouchi Fishing Boat for a fun fishing trip. Yagi suggests they liven things up with a little contest, and suddenly a relaxing afternoon turns into an all-out war!

While Takamura approaches his physical limits as he cuts weight for his upcoming world title match, the American champion David Eagle arrives in Japan. Talented, dedicated, respectful, and honorable, he exudes the aura of a true champion.

It's time for Kimura and Aoki to step into the ring at the Yokohama Arena! Kimura's up first, and nerves come into play as he stands before a huge crowd for the first time. Then when Aoki's turn comes up, he finds himself perplexed by a boxer every bit as unorthodox as himself! Can the duo set the right tone for Takamura's title match?!

It's the semifinal match, Miyata vs. Dachboy, and the Miyata camp recognizes a familiar face in the opponent's corner... Mister Sakaguchi, the former manager of the boxer Miyata beat for the OPBF title!

It's finally time for the main event, Takamura Mamoru vs. David Eagle! The challenger is full of vim and vigor, but even in the face of Takamura's fury, Eagle's face remains calm and collected.

Despite being stymied by Eagle, Takamura assures his corner he has a plan for victory. Just as he seems to be making progress, a shocking development changes the entire fight.

Blood sprays across the ring as Takamura and Eagle pound at each other's cuts. Takamura's good eye is quickly swelling shut, and the ringside doctor stands ready to call the match at any time.

And old photo and a little prodding from Ippo and Aoki prompts Coach Kamogawa and Nekota to take a trip down memory lane. Theirs is a tale of hope, frustration, and ultimately redemption in the early days of postwar Japan.

Prizefighting turns out to be no match for boxing as Sergeant Ralph Anderson easily manhandles Kamogawa and Nekota. The two fighters redouble their training even as they adjust to their new lives living with Yuki...and each other.

Kamogawa breathes a sigh of relief as he watches Nekota run circles around Anderson with his spectacular footwork... Until round four, when the soldier's frustration reaches a critical mass and things take a dark turn.

Kamogawa resorts to pounding a log with his bare fists as he trains to face Anderson and avenge Nekota. Anderson rediscovers his pride as a boxer and brings Miguel along as his cornerman. Everything comes down to this!