Sharon learns that revenge is a dish best served cold, and Mick is put in an impossible position.

September 1981 finds 18-year-old Ritchie leaving the Isle of Wight to go to university. In London, Roscoe walks out of parents' home, while Colin arrives from Wales to start a new career on Savile Row. The three boys meet, and along with fellow student Ash and best friend Jill form a gang and move into a flat, christened the Pink Palace. However, a distant threat on the horizon means that life in the '80s might be all too precious.

As Ritchie and Jill embark on a scheme to become professional actors, Colin is excited to be offered a trip to New York. Roscoe hides his fury when he finds himself excluded from his sister's wedding, while Jill finds herself entering a world of mystery and fear. The stories in the headlines are becoming true, and the shadow of Aids looms, but Ritchie's denial is ferocious and Jill finds herself unable to tell the truth as the situation gets worse.

While making their way in the world, the terror the friends been avoiding suddenly strikes at their heart in the most unexpected manner. Reeling from the news, everyone has to rally round. And when a hospital takes shocking action, the flatmates must fight like never before.

When Lee's feckless dad, Frank, announces that he's engaged to be married, Lee cannot believe that any woman would want to marry him. There must be something wrong with her. Lucy invites Frank and Carol to dinner to allay Lee's fears. Carol turns out to be perfect, but now Lee is even more nervous. Frank seems to dote on her. If Carol dumps Frank, Frank will be devastated. Then it will be Lee's shoulder that Frank will cry on, and Lee cannot cope with that. In an effort to find out what Carol is up to, Lee joins Frank's dating app and puts himself forward as a potential date for Carol. If she bites, he will know she's up to no good.