JEREMY Clarkson, Richard Hammond and James May swap the road for the sea in the first trailer for The Grand Tour's Christmas special.
The two-minute video for The Grand Tour Presents: Seamen sees the former Top Gear trio embark on a boat trip from Cambodia to Vietnam and further afield.
At one point, extreme weather forces the presenters to abandon their mission.
And in another scene, Clarkson can be heard shouting "Oh s***" as he crashes his boat into smaller fishing boats.
Clarkson chooses a recreation of a Vietnam War-era patrol boat.
Hammond opts for a Miami Vice-style speed boat while May picks a 1939 wooden river cruiser.
Setting off on the Tonle Sap Lake, they make their way across a 497-mile stretch of the lake and the Mekong Delta.
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Director of European Amazon Originals for Prime Video Georgia Brown: "We are excited to announce the launch date for The Grand Tour Presents: Seamen, the first of our epic adventure specials from Prime Video's much-loved trio, Clarkson, Hammond and May.
"We know fans love to see the guys take on these incredible adventures across exotic locations and The Grand Tour Presents: Seamen does just that - this feature-length special promises to be a thrilling off-road escapade, full of challenges and jeopardy, climaxing in one of the most dangerous and exciting challenges Jeremy, Richard and James may have ever endured - viewers are in for a rocky ride."
The Grand Tour Presents: Seamen launches on December 13 on Amazon Prime Video.