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Just two more legs remain. After starting the race 41 days ago on Canada’s Pacific coast, the teams now have the Atlantic within their reach - lapping the shores of the seventh checkpoint at the seaside town of Liverpool, Nova Scotia. To reach it, they head through the Maritimes, Canada's three smallest provinces – New Brunswick, Prince Edward Island and Nova Scotia.

To keep their lead, Zainib and Mobeen aim to test the local hospitality to the limit, but a trip to catch a naturally occurring phenomenon - on a sinking raft on the highest tide in the world - may derail all their hard work.

Claudia and her dad Kevin are running on fumes and, with costly taxis out of the question, need emergency surgery to mend their ailing budget. But a bad start, where they end up spending money to go backwards, makes their challenge even more difficult.

After faltering in the last leg and dropping into last place, the stress of the race is beginning to get to best friends Tricia and Cathie. Can they mend their differences and get themselves back into a strong position in time for the final push to the finish line?

A string of failed attempts to hitchhike shines a light on the obstacles Monique and Ladi face. The only team remaining to have not won a leg, it’s now or never if they are going to turn themselves into genuine contenders.

As the finish line draws ever closer, the teams have to battle fog, torrential rain and the spotty Canadian transport system to gain an advantage. But only one can be first and one step closer to the all-important £20,000 cash prize.