Random is the only way to discribe this episode. That is all it is. Random random. A russian fish plops onto the Simpsons car. To get money to fix it, Homer and Bart scam people.
Bart and HOmer were really out of character. It was also never explained about everything. Thej ury was there why? But they don't explain it at the end like they should. They just all go surfing.
A bit of randomness doesn't help this episode. Thankfully, it is in much lower doses these days, but it killed an episode that could have beeen oh so very funny and clever.