The day after James kills a fly, Mr. McFly reveals his grandmother is missing. Thinking he killed Grandma McFly, James scrambles to cover up his crime.

While waiting for the ultimate slow-cooked ribs, James and Max meet a girl named Echo who claims she's from a future with no processed foods.

When the parents in Dirt ban their kids from doing anything risky, James starts a pillow fight club for his peers to release all of their excess energy.

Believing he's in a "kid-life crisis," James decides to take a day off from school, but it's repeatedly interrupted by a pesky door-to-door salesperson.

Mr. McFly promises the class pizza if they take care of a flour "baby" for the day. But James struggles to cope when Max bails on him for a new partner.

Tired of taking the bus, James starts driving kids to school in "Dumpy," a golf cart he found in a dumpster. Too bad carpooling gets old quickly.