Two men try to carjack the Rustbucket while Grandpa Max is out. Fortunately, Ben is on the Rustbucket and the carjackers end up messing with Four Arms. But Grandpa Max doesn't believe Ben about this.

Ben and Gwen want something from the snack machine. When Ben's snack doesn't come out of it, he turned into Grey Matter and goes inside, but he turns back and gets stuck, and Gwen takes his snack.

When Ben unwittingly puts out the campfire needed to roast marshmallows, Ben must start the fire again without using the Omnitrix. But when Max isn't around, Ben ends up using Heatblast and later pays the price.

Ben and Gwen don't want to listen to Grandpa Max's music. Gwen offers Ben to go Upgrade and change it but Ben breaks the radio. Still everyone ends up with Grandpa Max's favourite music on cassette.

When an elderly woman's purse is snatched, Ben gets more than he bargains for when he retrieves it as Wildmutt.

Ben and Gwen are playing Roadkill bingo with things that are seen on the road to see who'll sit on the front seat weekly and Ben is losing, so he turns into XLR8 to place things on his card on the road. But with unexpected results, Ben loses and is grounded at the back seat for a month for cheating.

Ben and Gwen are at a museum watching an exhibit of crystal eggs when thieves try to strip it bare. Ben turns into Diamondhead, but even for him it proves hard to fend off the thieves and protect the eggs from breakage.

Ben and Gwen's backseat bickering escalates into an all-out brawl between Ben's Omnitrix and Gwen's magic. Ben fights Gwen as Four Arms and Upgrade, eventually destroying their surroundings, upsetting Grandpa Max.