Mike and Tim are through to the quarter finals of Robot Wars, but trouble is brewing as a rival team who didn't get through decide to sabotage their efforts. Meanwhile, Brian is invited to do an installation at an art gallery, and Marsha goes along to offer support and enjoy the free booze.

When Tim, Daisy and the others discover that Marsha has put the place up for sale, they panic and start trying to make plans to find her and win her back. Meanwhile, Daisy is offered a job on a local newspaper back home, and decides to take it, and Sophie is also leaving for a new job - though hers is in Seattle. After successfully getting through to Marsha, Tim finds the note from Daisy saying she's leaving. He is forced to send Mike to take Sophie to the airport whilst he rushes to the train station to persuade Daisy to stay.