Moz is a small-time (hash only) drug dealer. He rarely sets foot outside the confines of his squalid Manchester flat he shares with his long-suffering girlfriend Nicki. He's a lazy slob basically - as Nicki comments, "Jesus, Moz. I've seen coma victims with more 'get-up-and-go'". The series provides a window onto his life, and the bizarre sequence of people who come round to score from him. His dealer is a dodgy copper, his girlfriend is fed up with him, and he has visits from a silent man who wears a cartoon mask.
After nine months away, Moz and Jenny return to find Nicki has taken over the business.
Moz and Jenny's plans to move to Italy are thrown into disarray when Moz learns he has been removed from the most wanted list. Brian is dumped by his transgender boyfriend, Nathaniel.
Moz discovers that Cartoon Head's gang are involved in black market organ trading. Judith and Jake embark on an ill-advised plan to kill Cartoon Head.
Moz agrees to help Tilly with her new range of stained T-shirts. Jenny mistakenly believes that Moz has dumped her and gets into all kinds of trouble.
With Jenny away, Moz finds himself falling for the charms of both his ex-girlfriend Nicki and his sophisticated American neighbour Tilly.
Moz asks Cartoon Head's gang for help when Keith and Carol are kidnapped by the Low triad.
Finding themselves with a body to dispose of, Moz and Psycho Paul call on Doctor Persil.