A treasure hunt is held to celebrate 50 years of Valco value. Meanwhile, despite his best efforts, Gavin can't avoid confronting his and Cheryl's situation.

Brian panics when Margaret spots an unwelcomed guest on the shop floor. Meanwhile, a much-in-love Gavin begins to worry that Cheryl isn't what she seems.

Gavin struggles to keep his romance with Cheryl under wraps. Brian starts acting strangely when a blood bank sets up in store. Charlie makes a huge decision.

Sparks fly when Gavin and Cheryl are forced to spend the day in close quarters. Plus, it's Sue's birthday. But will anyone have remembered her big day?

Gavin decides to fight back when he shows up at work to find a huge Lauda truck blocking Valco's entrance. Charlie discovers an embarrassing secret about Daniel.

Everyone is on high alert when Valco boss Brendan O'Connor descends on the store. Plus, pharmacist Brian asks Margaret for help with an audition.

With barely a customer in Valco's aisles, Gavin sends a team of spies into new rival supermarket Lauda. Later, its ruthless new manager Cheryl pays him a visit.

Valco comes under threat from a new budget store as the hit supermarket sitcom starring BAFTA winner Jason Watkins returns. Sarah Parish joins the cast