Before the episode begins, Andrew hosts a short skit commemorating this being the show's 100th episode (when the Canada's Worst Drivers Vs the World and Canada's Worst Driver FAQ specials are counted).
The Cross: After showing lessons that the drivers have been getting (including parallel parking, three-point turns and S-turns), the drivers have to put these techniques to the test in this challenge, by turning a Volvo V70 a full 360 degrees in a tight, cross-shaped space, with a further challenge added by the car being a European right-hand drive model. Daniella is unnerved by this choice of car, and the resulting stress causes her to perform poorly, hitting the car 22 times during the challenge. Krystal ejects Steven from the car early in her run rather than handle his criticisms, and finishes with only 13 hits, but Andrew notes that she could have done a lot better if she didn't have such a cavalier attitude toward driving. While Tyler finishes with 15 hits, Andrew judges his performance to be even worse than Daniella's, as all of his hits were with much more force, and he did more damage to the car. While Lou is the only one of the drivers who correctly plans how to do the challenge (by using S-turns), she has difficulty actually doing so, and finishes with 20 hits, while taking longer to finish than the other three drivers combined; while Andrew notes that her performance left a lot to be desired, he still considers her the safest of the remaining drivers and the one most likely to graduate this episode.
Mustang Challenge: Reverse Flick: After Andrew re-iterates the harsh penalties that a person would face for actually carrying out this trick while on the road (though adding that such techniques are an effective tool when done in safe conditions), the drivers each get a lesson from Philippe in how to unbalance the car's steering and then spin it around 180 degrees. They then have to spin the Mustang around in a confined space, with each driver getting five attempts. Daniella is first-up, and on her first attempt she panics and stops before ever reaching the turning area. On her second turn she crashes into the barrier leading into the turning area, but on her third attempt she manages to pass, earning only her second challenge pass for the season. Krystal, who is accompanied by Andrew in her run, after she and Steven had a physical altercation between challenges, passes on her first go, despite steering a little erratically while reversing, leaving Andrew more than a little concerned that Krystal might end up being the only viable graduate this episode. Tyler nearly passes on his first attempt, spinning the car around without hitting anything, but pushing the footbrake in the process. He's therefore made to carry out a second run, which this time he passes.
Lou's first run ends in disaster, as she takes the turn too slowly and then panics and mistakenly hits the gas instead of the brake. She then fails her second run by hitting the entry lane barrier, but just barely passes on her third run, making this a rare challenge with a 100% success rate.
The Teeter-Totter: For this challenge, the drivers are placed at the wheel of a manual-transmission car and tasked with driving it onto and balancing a teeter-totter, in an attempt to teach them how to use the clutch on manual transmission cars (though Andrew notes that more often than not the challenge ends with at least one car having its clutch destroyed). Each driver will get ten minutes in which to complete the challenge, and if they fail they have to admit to one accident they've caused at the wheel. Daniella is once again first-up, and this time fails the challenge; her story is that she once wrecked her husband's brand new slow-blower after mistakenly hitting the gas instead of the brake. Lou nearly balances the teeter-totter right at the start, and to her own surprise manages to position the car exactly right just a few moments later, further cementing Andrew's belief that she will be this episode's graduate. Tyler also nearly passes out of the gate, but unlike Lou he lacks the finesse to balance the teeter-totter and ends up failing; afterwards, he admits to accidentally damaging another car's front bumper while reversing in a parking lot, and then driving away without leaving his details. Krystal (accompanied by Andrew again) just barely succeeds within the allotted time limit; Andrew makes her admit to causing an accident anyway, and she gives a similar story to Tyler, only in her case she hit the other car's bumper with enough force to cause it to break away entirely. On the way back to the studio, Krystal casually mentions to Andrew that she accidentally hit-and-run her own mother's car, only for Andrew to point out that the cameras were still rolling, and force her to apologise on-air.
Know Your Limits: In a test of the drivers' perception of their own level of driving skill, the drivers are each placed at the wheel of a Town & Country station wagon, and will perform an 80 km/h slalom around foam figures spaced 35m apart, after which they perform a second run with the figures moved closer together by a distance of their own choosing. Just to add to the challenge, the station wagon's speedometer displays in mph, forcing them to work out and remember the correct speed (50 mph) they need to drive at. For the fourth challenge in a row, Daniella is up first, but her under-steering causes her to hit two figures, and Andrew is left concerned that she can't recall anything about her run afterwards. She actually asks for the course to be widened (with the figures 45m apart) for her second run, and nearly passes, but fails after staring at the last foam person and driving straight into it.
Tyler avoids hitting anything on his first run, though drives too slowly and brakes at one point. Tyler thinks he can still pass with the gaps shortened to 30m, and to Andrew's and Jana's surprise actually succeeds in doing so. Lou passes her first run with ease, but declines to take a second run, feeling that she wouldn't pass with a shorter gap, which Andrew commends her for. Krystal (now accompanied by Steven again) succeeds in her first run, but insists on an ambitious reduction of the gaps to 25m for her second run, and on her way back to the starting point she earns both Andrew's and Cam's ire by texting at the wheel, while driving past crew members who are resetting the course. Krystal sarcastically apologises, which only makes Andrew even angrier, and Steven remains unconvinced that Krystal is going to reform, causing him to get kicked out of the car yet again. When she finally takes her run, Krystal speeds, and the unrealistically short distance between the figures causes her to spin violently off the track.
When Krystal meets the experts, they tell her that had she not displayed such a blatantly poor attitude in the last challenge, she would almost certainly have graduated this week. In response, Krystal blames Andrew, accusing him being unhelpful and overly negative. Daniella declines to graduate, feeling that she needs to take part in the final road test to fully prove herself, but both Lou and Tyler feel that they've learned enough to graduate.
Lou and Tyler are both shortlisted. Tim and Shyamala back Lou, feeling that she has the best attitude of the remaining drivers and the safest approach toward driving, while Philippe and Cam back Tyler for an overall better performance in this episode. Andrew is left with the deciding vote and chooses to graduate Lou, who he had felt all along should graduate this episode, though Tim's feedback on her public drives is ultimately what seals the deal.