Five teams set off from Mexico City in a race to reach Ushuaia in Argentina.
Sephy and Callum fall for each other, but the odds are stacked against them.
What connects the suicide of a young woman and the murder of a government minister?
More highlights from the career of one of Britain's best-loved comedians.
Georgie makes a professional decision with unexpected emotional consequences.
Two sides of Glasgow collide when a teenage girl makes a pact with a wealthy couple.