With Ava a wreck, Behrad and the Legends make a last-ditch effort to keep Sara from being abducted in the first place, even knowing that it will alter the timeline. Sara grapples with what she has just discovered about herself but is also shocked when Rory finds her on the mystery planet. With no time to spare, Sara, Mick and Gary devise a plan to help defeat Bishop. Meanwhile, Spooner envisions what her life would be like if she hadn't joined the Legends.
More highlights from recent series of the motoring show. Featuring another outing for Paddy McGuinness's ice cream van, a tribute to Stirling Moss, the Top Gear Mid Life Crisis Triathlon, and two very different takes on Italian Supercar.