Gabe and his friend Leo start a lemonade stand, but when they start to fight, they separate and wind up in an intense competition. Meanwhile, PJ decides to get Bob's high school band back together, but discovers there's a reason they broke up – Amy.

Teddy convinces Mary Lou to audition to sing the national anthem at a Denver Nuggets basketball game, and Mary Lou wins. Meanwhile, it's time for the annual Bowling Tournament with the Duncans' rival family, the Gogans.