Jack is joined by earnest new partner Georgina 'George' Dixon to investigate the murder of car salesman Carl Mercer,whose corpse is found in the boot of a car at his work-place. Jack is convinced the killer is one of his work colleagues,including service manager Dave Jackson and his daughter,receptionist Debbie,who was engaged to Carl,or sales rival Emma. Top of the list is Debbie's jealous ex-boyfriend Ryan Kinnock,who detested Carl. To lazy Jack's annoyance George makes him help her check the suspects' phone records and he actually finds the person who had sex with Carl the night he died. This in turn leads to George unmasking the killer.

After Jack's juvenile antics get him - and George - demoted to the missing persons unit they investigate the disappearance of lawyer Ted Finch, whose body is later found in a river. His widow was having an affair with work colleague Charlie,but he had an alibi and the trail leads to the gym where Ted was last seen alive.George finds herself drawn to one of its members,leading Jack to believe she is in danger and mount a clumsy rescue attempt before working out what really happened to Ted.