Maria and Luke start their new school where they pal up with another boy, Clyde. However, two of the teachers and the class genius turn out to be Slitheens in human form. They are shapeless smelly invaders from another planet whose aim is to destroy the Earth by turning off the Sun with the aid of a machine which Luke inadvertently helps them to start. The three teenagers are chased around the school by the Slitheen family.

The kids escape from the Slitheen and meet up with Sarah Jane at her house. They discover that vinegar will kill the Slitheen so, armed with vinegar bottles, they return to the school and destroy the three adult Slitheen and their machine. Carl, who took on the form of the class brain-box, escapes via a teleport but Sarah Jane assumes that he is dead. Back home she accepts Clyde into the group but asks for him not to tell others about their experiences.

Sarah Jane (Elisabeth Sladen) and her young friends investigate reports of a ghostly nun which is haunting the local old folks' residential home. And when one of the elderly residents entrusts Luke (Tommy Knight) with a mysterious alien talisman, it becomes clear there is even more to the story than meets the eye. The gang delves deeper, and discovers that the nun is part of a secret order sworn to protect a terrifying alien creature who can turn her victims to stone with a single look.

Maria's dad Alan (Joseph Millson) has been turned to stone. The alien talisman is now in the possession of the Gorgon and her evil nuns, and they are preparing to open the portal to their world. Can Sarah Jane (Elisabeth Sladen) and her young friends free Alan from his stony state, prevent the nuns from unleashing more deadly aliens on the Earth, and avoid the Gorgon's petrifying gaze?

Sarah Jane (Elisabeth Sladen) and Maria (Yasmine Paige) investigate the mysterious disappearance of local boy Lance Metcalf, and soon discover that a number of children have gone missing across the country. Remarkably, the disappearances all occurred during freak storms and in cities that are home to a laser tag game called Combat 3000. As Sarah Jane and Maria delve deeper into the mystery, Luke (Tommy Knight) and Clyde (David Anthony) are off enjoying a game of Combat 30…

A Carcaroth has arrived on Earth, seeking soldiers to help fight his endless intergalactic war back home. Using Combat 3000 to sift out the best, most aggressive and instinctive fighters, he then transports them to his spaceship – awaiting transfer to the war. Clyde (David Anthony) and Luke (Tommy Knight) find themselves amongst the 'warriors', while Sarah Jane (Elisabeth Sladen) and Maria (Yasmine Paige) must infiltrate the alien's headquarters to bring down the Carcaroth from the inside.

Sarah Jane (Elisabeth Sladen) mysteriously disappears – just as a huge meteor threatens to crash straight into Earth. When Maria (Yasmine Paige) wakes up one morning, it's as though Sarah Jane – and Luke (Tommy Knight) – never existed. Living across the road in Sarah Jane's house is a woman called Andrea (Jane Asher). And with the attic empty and Mr Smith (Alexander Armstrong) nowhere to be seen, every other trace of Sarah Jane has vanished – and Maria is the only one able to remember her. With the mysterious, hooded figure of the Trickster haunting Bannerman Road and the alien Graske meddling in time, Maria sets out to discover whatever happened to Sarah Jane. But as her journey takes her back to 1964, will she be able to find Sarah Jane in time to stop the meteor from destroying the world?

Maria (Yasmine Paige) finds herself taken back in time by the alien Graske to a pier in 1964. There, she meets a young girl her own age called Sarah Jane Smith (Elisabeth Sladen) who, with her friend Andrea (Jane Asher), is about to embark on a fateful adventure. Taken by the Graske again, Maria is then reunited with the present-day Sarah Jane. But with them both trapped in limbo as part of the meddlesome Trickster's plan to wreak chaos, they are helpless to stop the huge meteor which is about to crash into the Earth. Maria's dad Alan is the only one able to remember Sarah Jane and Maria and faces a struggle to bring them back in time to save the world.

A news report on a couple looking for their missing son, Ashley, brings a surprise for Sarah Jane (Elisabeth Sladen) when she discovers that the missing boy looks exactly like Luke (Tommy Knight). And when Mr Smith (Alexander Armstrong) confirms that Luke is a genetic match with Ashley, Sarah Jane sends him back to live with his 'parents'. With no knowledge of his former life, Luke finds it hard to fit in and, when he tries to escape, he makes a startling discovery about who his parents really are. Sarah Jane, meanwhile, makes some investigations into the Pharos Para-Science Institute – a research unit that has been conducting experiments using alien technology. Floella Benjamin guest stars as Professor Rivers.

Maria (Yasmine Paige) and her dad, Alan (Joseph Millson), dig deeper into the mystery of Luke's (Tommy Knight) new parents and discover that Luke has actually been kidnapped by the Slitheen. There are more shocks when Sarah Jane (Elisabeth Sladen) and Maria find out that Mr Smith (Alexander Armstrong), Sarah Jane's super computer, is one of the bad guys. With Clyde (David Anthony) nowhere to be seen, Luke in the clutches of aliens and no Mr Smith to help, things are not looking good for Sarah Jane and Maria. But just what do the Slitheen want with Luke? And who, or what, exactly, is the Xylok?

A lone surviving Sontaran from the failed conversion of Planet Earth wants revenge for the deaths of his comrades.

A lone surviving Sontaran from the failed conversion of Planet Earth wants revenge for the deaths of his comrades.

Trouble is brewing at Spellman's Magical Museum of the Circus when a group of people join hands and block the entrance the the museum... but they let Sarah Jane in, what is this mystery all about?

Trouble is brewing at Spellman's Magical Museum of the Circus when a group of people join hands and block the entrance the the museum... but they let Sarah Jane in, what is this mystery all about?

A fraudulent astrologer named Martin Trueman is hit by an extraterrestrial body and begins to impress everyone with his uncanny predictions. However, what he predicts for Sarah Jane is far from pleasant...

Clyde threatens Sarah but they manage to talk him out of it, which leads Sarah Jane to believe that Trueman's control on people can be repressed by persuading them to do something that they do not normally want to do. Meanwhile, using in his broadcast to the world, Martin Trueman takes over each star sign one by one, starting with Gemini - including Rani's mother. The world is in confusion as people are accepting the 'Ancient Lights'.

Luke is going for a sleepover at Clyde's house whilst Sarah Jane goes away for the weekend, during which Clyde's estranged father Paul turns up hoping to get to know his son. Meanwhile Rani discovers that one of her classmates is in possession of a strange locket, that can be used to control people.

With Clyde's father Paul possessed by the alien pendant, he takes Clyde off for some fun. With a little help from some old friends, Rani and Luke try and track them down, leading to a waterside confrontation with the Berserker

When Sarah Jane finds a time fissure, her curiosity leads her to go through it and she finds herself in 1951, in the village of Foxgrove, where she was born. Eager to see the parents she never knew, she makes a decision that will have catastrophic consequences

With the Earth devastated under the control of the Trickster, Sarah Jane and Luke go back to 1951 and change things back to how they were- which means that Sarah Jane's parents must die. Will she make that sacrifice?

Mrs Wormwood returns to see Sarah Jane- but to ask help. The Bane have turned against Mrs Wormwood and are preparing to unleash a dark power against the universe. However, to thwart the Bane's plan, Sarah Jane must call upon an old friend

Luke's dreams are being tormented by visions of Mrs. Wormwood. The Sontarans are back for revenge. Sarah Jane must once agian call on an old friend.

Sarah Jane and the gang face the most dangerous day of their lives, as the rhino-like Judoon return. When prisoner Androvax the Destroyer crash-lands on Earth, a Veil is set free and starts to turn Earth's technology against itself.

Luke, Clyde and Rani must fight their most fearsome enemy yet - Sarah Jane Smith.

Far in the future, in the year 2059, Old Rani remembers the day when her whole life went wrong.

Eve's powers grow out of control, catching everyone in her endless sinister games.

The Doctor returns on the happiest day of Sarah Jane's life, but a deadly trap is waiting for them all.

The Doctor arrives to join the battle, but is he too late to save both Sarah Jane and the Earth itself?

A haunted house, with mysterious whispers and secrets in the shadows - time for Sarah Jane Smith!

Sarah Jane and the gang discover the secret of Erasmus Darkening - but are they too late?

Unknown forces bring to life Leonardo Da Vinci's most famous painting, and Clyde's day becomes a nightmare when a school trip descends into disaster. Trapped and without Sarah Jane's help the gang must find a way to battle the awesome abomination.

As Luke and Rani investigate the myth of the dreaded abomination, Mona Lisa vows to free her horrifying brother from his prison, but everything now depends upon Clyde to stop the terror.

The Blathereen, arch-rivals of the family Slitheen arrive on Earth. In a move that surprises the gang they declare peace between Earth and Raxicoricofallapatorius and they offer Sarah Jane a gift, one that might change the future of the human race forever.

Sarah Jane faces the battle of her life to save her son from the effects of the gift of the Blathereen. Meanwhile trapped in the school, Rani, Clyde and K-9 fight to find a way to get to the attic, where the final showdown will take place.

When Luke has his first nightmare, he's haunted by a dark figure from his dreams. A strange entity is reaching out to our world, with terrible consequences for the whole human race. Luke faces life-changing events, and Bannerman Road will never be the same again.

With Luke, Clyde and Rani trapped in a bizarre dreamscape, Sarah Jane must fight alone. As the Nightmare Man grows stronger, only K-9 might hold the key. But can Luke summon the courage to face his adult life before the whole world is trapped in an endless nightmare?

Androvax the Veil returns to Earth and asks for the gangs help, but how can they trust him? Or is the threat posed by the Vault of Secrets great enough to overcome old enmities. And when the android guardians threaten destruction, is there really any other choice?

When an old enemy, Androvax the Veil, returns to Earth asking for help, the gang face a dilemma – should they trust him? Or does the legendary Vault hold an even greater terror? But a second threat arises, when android guardians threaten to destroy anyone who uncovers their secrets. As the battle between Sarah Jane, Androvax and the androids reaches its climax, Rani has to save her own mother from being caught in the crossfire. But as the Vault opens the destiny of the entire Veil species is at stake. Is it too late to save them?

Old Companions Sarah Jane Smith and Jo Grant meet for the first time to discover the truth when the Doctor is declared dead. An interstellar conspiracy gathers around UNIT Head Quarters as Clyde finds that he holds the fate of the Time Lord in his hand.

Old friends fight together - but is it too late to stop the sinister Shansheeth?

Clyde and Rani awake to find they are the only humans on Earth, even Sarah Jane Smith has vanished. But the Earth is not deserted, stalking the streets of London, strange forces gather.

Clyde and Rani only just manage to escape from the robots. Regrouping with Gavin in a cafe, Clyde deduces that he and Rani were left behind after the robots abducted everyone else because of the two of them having been 'grounded' by the Judoon, although this fails to explain Gavin's continued presence. When Gavin runs off again, Rani and Clyde are confronted by the robots, who explain that they want the 'son and heir' (Although Clyde initially assumes that they want Earth's sun and air); Gavin's father - who he mentioned left his mother when he was young - was an alien prince, and with his father's recent death Gavin is the only viable heir to the throne. Tracking Gavin down, Clyde and Rani explain the situation to him, convincing him to remove a ring that his father gave his mother to give to him; the ring acted as a bio-damper that prevented anyone from detecting his alien heritage. With the ring removed, the robots can sense him, and he agrees to accompany them back to his father's world, his last actions on Earth being to name Clyde and Rani a Lord and Lady of his people. With Earth's population returned - having been sent to a 'warp shunt' while the robots searched - Sarah and Mr Smith create the necessary records to state that Gavin has moved to Australia, Sarah praising Clyde and Rani's accomplishments even when they were alone.

A harmless investigation turns into an epic quest across time and space.

Sarah Jane, Clyde and Rani fight across the centuries to be reunited.

No one can defend the earth forever, but who could ever replace Sarah Jane?

Sarah Jane has gone for good, and a new regime begins at Bannerman Road!

Sarah Jane discovers an abandoned baby girl on her doorstep and attempts to find out who left her there. At a local nuclear power station, a beautiful woman appears out of nowhere and uses alien powers to take control of the place.

Sky has undergone a transformation and in the process has triggered a countdown that nobody is able to stop. Sarah Jane and Sky end up being trapped between the alien war fought by Metalkind and Fleshkind. Clyde and Rani attempt to prevent the biggest bang the world has ever seen.

After some very unusual weather hits Bannerman Road, Sarah Jane investigates why. Fish are falling from the skies, and Sarah Jane's investigation ends up leading the team to the Museum of Culture. After Clyde acts the fool a little to much, his friends end up turning against him, and he is banished from their lives.

Clyde finds himself abandoned on the streets of London, living rough with no food to eat. Somebody ends up reaching out to him, but as they become friends, he's warned about the legendary Night Dragon.

Everyone wants the brand-new SerfBoard - and why not? What could be so dangerous about a computer?

Luke and Sky must help the Skullions, but Sarah Jane is in danger too, so who will they save?