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A roller-derby queen and a physics teacher are among the competitors put to the test by flying off a ramp wearing apple crates for skis, getting quizzed while being hogtied over a pool of garbage and getting launched out of a cannon while Bam and his band of misfits wreak havoc from the ground.

Challenges this week include being blasted from a toilet seat and having to endure a barrage of firecrackers.

Challenges this week include an obstacle course, an elevated treadmill and a zip line that has been inverted.

It's ladies night as four women show Bam and the boys what they've got as they strut their sweet stuff in the Bam Barrel Rodeo, rain in the cash with the Money Machine and climb inside a barrel for a game of Human Bowling.

This week, contestants have to face a spinning balance beam, a wheel of misfortune and a flying recliner.

Contestants this week take part in some poolside fun as human slingshots, super-sized ostrich eggs and a porta-potty run.