As with previous years, eight people, nominated by their family or friends, enter the Driver Rehabilitation Centre to improve their driving skills.
Due to the exceptionally awful performances by most of the drivers, the experts agree to graduate one person immediately so as to give the remainder their full attention and very quickly decide on Chris.
However, Cam raises the issue that Henrietta would not realistically benefit from rehab, since she drives so rarely and that they would be better served sending her home, graduating Chris and focusing on the remaining seven.
Angelina has a lengthy discussion with the judges and admits that she is no longer on anti-depressants due to her original psychiatrist having retired and her being unable to find another in Sudbury.
In the end, Andrew tells Shelby that he has been the best performer until now and that the experts could have seen a case for him graduating this episode, but since he said he didn't want to, he'll stay in rehab and so will everyone else.
Angelina is further told that she has been booked a 60-day stay at a specialist psychiatric clinic and is initially indignant about this, but ultimately accepts the offer, in part due to the strong implication that she will simply be expelled from rehab if she refuses the treatment, which would have made her the third contestant to be expelled from rehab (after Colin Sheppard in the second season and Scott Schurink in the sixth season) and the second by the experts.
However, Angelina's departure is not the only issue facing the judges, as it's also clear that Yolanda's excessive negativity and unrealistic expectations are proving detrimental to Michael's learning.
Andrew tells Michael that Eric's health has sufficiently improved for him to take over from Yolanda as nominator, while Yolanda's has been failing due to pulled muscles sustained in the first episode; Michael tells the judges that while he'd be grateful to have Eric around again, he also thinks that allowing him to graduate this episode would resolve two issues at once.
Andrew closes out the episode by saying that Angelina isn't really Canada's Worst Driver Ever and that, unfortunately, her problems go far beyond a simple lack of skill at the wheel.
Kevin initially wants to graduate, but quickly withdraws his request upon Andrew pointing out that he failed every single challenge this episode.
However, Dale fails to show up for her meeting with the experts and, upon further investigation by the production team, it turns out that immediately after the Slalom Challenge, she checked out of the drivers' hotel and caught a cab ride home.
The experts ask how it happened and Dale initially claims not to remember, but, on further questioning, reveals that upon returning home, she found that her husband, John (one of the six people who nominated Dale three years earlier and has now since died), was not there and, in frustration, broke the front door window in an attempt to get in the house, severely cutting her hand and severing the tendon in the process.
History then repeats itself, as Sly's strong final drive manages to override his horrible track record in the contest and saves him from being named the worst (as previously happened in the seventh season).
Despite believing she will be named the worst, history repeats itself for Dale as well, as she avoids the title due to the experts feeling she was a little more aware of the dangers of driving than Kevin and Cam predicting that her license will soon be revoked anyway.
In an ending voiceover, Andrew reveals that while Kevin hasn't driven since the show was filmed, he has both failed to sell his existing car and bought a replacement.