D'oh Canada is the twenty-first episode of Season 30.
Synopsis
When the Simpsons go to Niagara Falls, Lisa goes over the Falls and is mistakenly given asylum in Canada. When Marge goes to Canada to rescue Lisa, they begin to re-evaluate their love for America.
Plot
The Simpson family is on Mount Splashmore, in the queue to ride the water slide, when Homer starts saying "Points" and takes them when they reach the top, get in the car and leave the location now "test range of biological warfare. "
Homer has earned two million loyalty points in hotel rewards and takes them to Niagara Falls, traveling through the upper part of the state of New York singing a song. At the falls, Bart and Lisa begin to bounce against each other in the game Battle for the Fall, but she bounces too hard at the falls, where she is rescued by the Canadian mounted police.
She is taken to the emergency room at the hospital where Dr. Chang begins to take care of her, saying she is fine, but recommended a five-day stay to make sure. When Homer mentioned taking another mortgage, Dr. Chang reminded him that they were in Canada and that his medical care was free. Lisa begins to rant with the Canadian mounted on the United States, gave an injection that calmed her.
When they don't want to leave her there, they deported the rest of the family and placed Lisa in a foster home. Springfield receives a bad blow once Lisa leaves, including the Springfield Elementary School Band. Lisa begins attending Alanis Morissette Elementary School and asked if she could send a note to Justin Trudeau to apologize for what the American president had said about him.
They take her to talk to him on Skype. He is upset about being called "weak", which shows his strength towards her. Lisa then asked Trudeau about the SNC-Lavalin affair and Trudeau left his officer out the window and went down the wall to escape. Lisa then asks about the SNC-Lavalin affair and Trudeau left his office by the window and went down the wall to escape. Lisa then tries to be offended in the school play.
On the Detroit River on the Ambassador Bridge, Marge hides in the teenager's car with the loud voice to reach the foster home, and forces her to leave. The teacher tells her some bad things about Canada so she feels better when she leaves, while a Canadian Ralph Wiggum plays around the snow.
However, at the US consulate, they will not be allowed to return to their homes, so they are asked to return to Canada, but they refuse. Marge asks Lisa to reconsider the good things about the house she is leaving. That convinces her to return, but the people who were supposed to take them back to the United States leave them in the middle of a frozen river.
Homer and Bart come to the rescue with a truck, but it sinks into the river, so they start running and return to Springfield, where Lisa meets again, even seeing the pony Princess and Ralph. For his show and telling, Lisa brought the Canadian mounted, who also brought Nelson's father with him.
