Frankie returns to her native Glasgow after two years away to investigate a mysterious message from the dying aunt who raised her. Cat goes on a date with policewoman Sam, but her heart isn’t entirely in it. Tess catches her girlfriend cheating and embarks upon an affair with outwardly heterosex...

Lou gets Tess a job on her show but asks her to keep their relationship a secret. Frankie gets into an argument at Carol’s funeral, leading her deeper into the investigation into that final message.

Cat and Sam are enjoying a honeymoon period, but cracks begin to show as Frankie's presence becomes an issue. Jay tries to prove he isn’t too old to be the office intern. Tess gets more than she bargained for when she turns up at Lou's flat unannounced. Frankie has a revelation that throws her en...

Frankie goes deeper into searching for the truth about her past. Tess tries internet dating. Frankie and Jay make a big mistake.

Cat and Frankie reminisce as they visit their old school. It's Tess's birthday, but the party does not quite go as planned.

In the Season 1 finale, Tess gets stuck in a lift with Jay on the day of a big audition. Sam and Frankie have a confrontation.