Partners Aaron Bishop and Ronnie Pike must infiltrate a crime ring who are stealing luxury cars in London.

A gunfight, a race for their lives... it's all going on for London cops Bishop and Pike as a notorious criminal appears out of the blue.

Thrown off the Sharp case, Pike decides to break the rules. A new chase leads the boys into a shoot-out.

The lives of Pike's family are turned upside down when his and Bishop's refusal to follow orders hurls them into a disturbing case.

Bishop receives a package that rocks him to his core. Pike must put his family first, even if it means abandoning his best mate.

Pike and Bishop revisit Borlock and promise to protect him if he tells them everything he knows about Sharp - leading the duo into a race to catch the culprits.

Bishop and Pike get dragged into their most dangerous case yet, one that will truly test their morals. Meanwhile, the Unit are under the watchful eye of the new `by-the-book' Deputy Director, Richard Cockridge.

Tension mounts as Pike and Bishop are drawn deeper into the Markides family. Tanner sweats over her recent decision to steal a sum of `drug' money to fix a problem in her personal life.

The hunt for a missing girl leads Bishop and Pike to Amsterdam and into the heart of the Markides's dark operations.

As Alex regains control of the family, Mikey puts Bishop and Pike in charge of a gun-trafficking op. But the boys quickly find themselves out of their depth.

Elena digs into Bishop's identity. Meanwhile, the boys hunt for a lead in Cyprus. But how long can they keep their cover?

Bishop and Pike's covers are blown, with serious consequences for the unit. With the boys' lives at stake, Tanner goes head-to-head with Elena.

Bishop seeks out one last chance to bring the Markides family down. But this time, Pike isn't prepared to help him.

The unit must go off-the-books if they're to take down Alex and Mikey. Adrenaline-fuelled series finale. Strong language from the start and violent scenes.

London cops Pike and Bishop escape the capital for a much-deserved break in South Africa. But the fun doesn't last as they are drawn into a new case.

Pike and Bishop must use all their smarts to survive a stay in a grotty South African prison. Meanwhile, the clues start to mount in the kidnapping case.

Bishop and Pike's impromptu South African kidnapping mission concludes as they close in on the masterminds behind the plot. As Arjana makes a startling discovery, she is taken hostage before she can alert the boys.