What happens when you combine The Simpsons with the characters of Family Guy? A new trailer of an upcoming crossover episode shows us the combination turns into a battle.
On Saturday, fans at Comic-Con got to see the trailer for Simpsons Guy, and now it's online for everyone to watch.
The 5-minute trailer starts off when the Griffin family realizes they're stuck in Springfield, so they start walking around, and run into the Simpsons.
Don't drink the water, says Peter Griffin, noticing the Simpsons' yellow skin. Everyone around here looks like they have hepatitis.
But after that, Peter and Homer get off to a good start, after sharing a love for donuts. But they don't stay friends for long. Three minutes into the trailer, the two dads are fighting, because it's revealed that Peter's favorite Pawtuckett Patriot beer is just a knock-off of Homer's favorite, Duff.
Also in the trailer, Stewie and Bart make prank phone calls, and Peter teaches Homer how to do a cutaway joke.
The hour-long Simpsons Guy episode will air on September 28th. The Simpsons are also airing another crossover with Futurama, called Simpsorama, in November.