The Legend of Old Ulysses (S15E17)

The Smith family takes their annual vacation to Possum Lake, where Stan and Steve are famous for winning all the campground games. Snot and Tuttle decide to tag along, and they dominate the games that Stan and Steve usually win. Steve plots to break up Snot and Tuttle, but plans change when the mythical fish at the bottom of the lake wakes up. Meanwhile Francine and Hayley become obsessed with tanning and Roger becomes a bike tour guide. (iTunes)