In Morocco the remaining six adventurers are split into three pairs for a team test requiring brains and brawn. They must build a boat from scratch and race across a huge reservoir in the foothills of the Atlas Mountains. They'll have to find numbers which they must memorise until they reach the shore, where they'll unlock the treasure chests.
The two losing teams face the survival challenge – a jaw-dropping abseil down a 300-foot waterfall. The fastest person is through to next week, the slowest three head home to the UK where their partners must answer general knowledge questions to keep in with a chance of sending their loved on back to Morocco for next week.
Prized Apart, BBC1, 7pm
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