The cogs go International restoring an iconic 1970s Royal Enfield Interceptor motorbike. An epic road trip ensues when Richard, Neil and Andrew decide to deliver the bike themselves to the cool Wheels and Waves festival in Biarritz.
Richard redesigns his horsebox into an RV for the Cog race team but questions whether they should continue racing as the Cogs face their final event.
Richard and the Cogs restore 'Olivia' for a live audience at CarFest. But can the show help the team get their mojo back?