On his first day working with Ryan, rookie cop Jake faces a challenging shift on Brighton's streets, but as the boss's son, his biggest task is earning the respect of his colleagues.

Jake is humiliated when he makes a spectacular rookie error on Brighton Pier. Meanwhile, an eccentric drug dealer is finally in Jo's sights, but his esoteric musings prompt her to consider her life choices.

With an escaped prisoner on the loose, Carl and Felix investigate a spate of muggings on public school boys. Meanwhile, Jo investigates a distressing case that brings Jake and Ryan to blows.

An adrenaline-fuelled Saturday night in Brighton sees the team deal with a drugs death, a stakeout and a dog on cocaine. But it's a nightclub brawl that causes a personal crisis for Carl.

Felix investigates a kidnap case with more to it than meets the eye. Jo struggles with Robert's rejection and Carl is left to pick up the pieces.

Following revelations about his son, Ryan loses his temper, and Jake witnesses a darker side of his mentor. Carl's chaotic personal life threatens a high-stakes case, and a runaway iguana plays cupid for Lino.

When she's held at gunpoint, Donna's quick thinking saves the day but has personal ramifications. And as Felix and Carl investigate the disappearance of a teenager, Carl gets a disturbing insight into his boss' life.

An ex-squaddie suffering from PTSD loses his grip on reality and endangers the team. As Jake realises he can't trust his lawyer boyfriend, Robert is forced to confront the consequences of his marital betrayal.