20 F1 cars. 5 red lights. 0.2 seconds to react. 5 seconds to 120 mph. The start of a Formula 1 Grand Prix demands extraordinary skill from the drivers and quick decisions from the team strategists.

Katie and Christian explore the start of a race with Mercedes reserve driver and former Haas racer Mick Schumacher, who explains what happens in the cockpit in the moments before the start, and the intense run to turn 1. Former Aston Martin Head of Race Strategy Bernie Collins tells us how the race start affects the team's plan for tyres and pit stops.

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