At some point during all of this Fiona figures out what happened, and runs to the kitchen garbage: Steve's pack of cigarettes included a bit of Canadian health sticker-nagging. Steve cops to kidnapping Frank immediately: He was planning on dumping him in, like, Flint, Michigan -- he was transporting a stolen car to Detroit last night -- and then saw the signs for Toronto and just kept on driving. Fiona's aghast ("You think it's funny?" No, funny would have been Newfoundland) and assumes it's because he tried to hit Steve last night -- "No? Because he's got a family that he doesn't give a shit about?" -- so she punches him right in the face.
Confronting Fiona with the total trashiness of her whole existence being the secret key to her undying devotion, Fiona kicks him out of the house to get Frank back somehow, all up in Steve's grill: "What my dad is -- what my family is -- has fuck all to do with you," she shouts; all Steve ever wanted was for her to stop thinking that was true. She doesn't need saving, but she does need helping, and if Steve's ever going to be the daddy to her mommy to all the kids and neighbors, he needs Frank out of the way. 70% sweet, 30% creepy.
Steve comes back soon enough with a recreational vehicle, making them literal trailer trash, and his dwarven accomplice -- complete with disgusting Axl Rose ginger-dreads -- explains that he's a smuggler by trade and will have no problems sneaking Frank back across the border.
Tony comes back after the boys are gone, and asks homeworkin' Lip for a moment alone. Fiona's doing dishes and completely ignoring the total love of Tony, due to her oblivious self-hatred, and when Tony asks what the deal is with Steve she doesn't know for sure. "CYO Basketball League Awards Banquet is next week, at St. Stephens. There's a chance I might get Coach of the Year." God, he's perfect. She's like, "How nice for you!"
Tony asks Fiona to escort him to the banquet with some sweet talk -- "They're eight, so mostly it's just helping them get the ball anywhere near the basket... One of the kids always licks the ball before he takes a shot, I have no idea why" -- and she's shocked, but pleased to accept. Steve's gotten her just far enough to see that good men are a possibility.
Frank wakes up in the trailer's crawlspace and starts chomping on the drugs they're smuggling back home, sucking water off a drainpipe leak; out in the van they're watching more MMA. When they arrive, the entire neighborhood's there with Canadian flags, cheering him and pissing him off. Fiona shakes her head at Steve, down in the crowd; now she has even better reason not to forgive him.