Water Tank Challenge: The drivers are taught gentle braking in this challenge, where 500 litres of water are placed in a tank over a car. The objective of the challenge is to maneuver the car around an obstacle course (complete with several surprises), with jerky braking causing the water to overflow from the tank, soaking the occupants in the car. Although everyone was soaked with at least 200 litres of water out of the tank, the worst came with Michael's 375 litres lost.
Navigating around CFB Borden: The drivers, in a navigation challenge, are given a list of 19 turns to be made around CFB Borden, and had up to 40 minutes to complete the task. Shannon finishes without any issues, also finishing the fastest at 20 minutes, with Jodi, Sean, and Colin also managing to finish, despite having headed off-course (Sean and Colin had also sped in an effort to cut time and get back on course). Michael, although taking nine minutes to take meticulous notes on the 19 turns, distrusts his notes and fails to finish, while Henrietta's vision problems lead her to do the same.
Swerve and Avoid: The drivers practice swerving on three varying surfaces: mud, gravel, and coated asphalt. Jodi is convinced she failed all three, but actually passed the asphalt (and was the only driver to do so), while Shannon is the only driver to pass the mud portion. Shannon, however, fishtails horribly after accidentally putting too much gas when attempting to swerve on gravel, although Sean and Michael do so successfully. Henrietta fails all three tests, but worst of all was Colin: it appeared upon closer inspection that he intentionally failed all three courses - he swerved with only one hand on the wheel in mud, locked up his brakes on gravel, and accelerated when told to brake on the asphalt.
Colin claims that he blacked out when he was close to the box wall, and Jeremy agrees with him. Although he is convinced that he duped everyone with this stunt, Sgt. Woolley does not fall for it, and he is also caught by his fellow contestants, all of whom are convinced he would be among the final three.
The judges are stumped on who to graduate due to the poor performances, but Andrew instead has an alternate solution. He announces that Colin would be getting his car key back, to everyone's shock, but Andrew destroys the key with a circular saw, while telling Colin that he is expelled due to his carelessness and not wanting to change. As Colin and his car are towed all the way back to his hometown, Andrew makes a final comment: "Let's all hope Colin loses his license before his life."