Clive and Ruth have moved but Dave and Cath and Rob and Leone are taking part in a treasure hunt, organized by the enthusiastic Laurence and invite the visiting Daniel - who is surprised to find Chloe pregnant, not necessarily by him - to join them. Their competition comes in the form of Grace and Maurice and her grumpy mother Elsie but they have an extra ally in the lordly Marcus, whom Dave sees as an influential business contact. Unfortunately Elsie dies and her body disappears, so Maurice and Grace plan to withdraw - leading the others to invite them to join their team. Grace wows Maurice at a karaoke session and puts pressure on Marcus to aid Dave’s promotion hopes. Daniel drops out to be with Chloe when she gives birth and Rob is exposed as ringing a mystery woman called Jackie whilst overall the Booze Cruise team may or may not have won the treasure hunt.