In this episode of the world's biggest car programme, Richard Hammond is dropped into the remote, frozen wastes of Canada to test a watch with a built-in emergency beacon. Normally, activating the device would summon a vast international rescue crew, but in Hammond's case, the distress signal is sent directly to Jeremy Clarkson and James May who are disorganised, disinterested and very many miles away. Eventually, the pair get their hands on two machines they believe are suitable for the job and set off on an epic adventure to find their colleague. Also in this show, Clarkson is on the track in the new 471-horsepower Lexus RC F coupe whilst star of The Fall and The X-Files Gillian Anderson tries her hand in the Reasonably Priced Car.