Wyatt Bernstein, a kid with three sisters, builds a puppet named Crash, who comes to life and becomes his brother he always wanted.

Crash helps Wyatt with his insect phobia but develops a fear of mustaches himself. Amanda develops a fear of meat.

Crash becomes the coach of Wyatt's basketball team and ends up benching Wyatt.

Wyatt takes Crash to school with him, but Crash gets in trouble with the principal.

Rufus "The Slapper" is stealing everyone's stuff as Wyatt tries to reason with him. Crash ends up captured by Rufus who holds him for a ransom of Wyatt's bicycle which doesn't go well. Meanwhile, Amanda thinks that Mel had killed Crash after he had previously broke the television as Mel takes advantage of this when she is informed of this by Cleo.

While Wyatt is gathering stuff for the school's rummage sale, Crash becomes extremely jealous when Wyatt finds his old "Flex Fletcher" toy. Meanwhile, Cleo creates a money-making venture at the rummage sale and Amanda raises money for new boots to wear at a party.

While working with Wyatt on a report about the Roman Empire, Crash gets struck by lightning and receives multiple personalities of Crash (like Chef Crash, Caveman Crash, Southern Millionaire Crash, Cat Crash, and the gladiator Maximus Octavius) which cause trouble immediately.

Crash, Wyatt and Pesto join the school wrestling team.

In order to get tickets to the big wrestling, Wyatt and Crash get a job as newsdealers at Roland's newsstand and Crash starts to give customers silly advice which actually works. Meanwhile, Cleo holds a meeting with her friends who have been appointed as Cleo's board of directors and later plans to take advantage of Crash by making him the spokesperson for Cleo.

Crash believes a trucker hat that he purchased at the Muddy Melee monster truck event brings him luck. When Crash's hat goes missing, he thinks that it has been stolen and suspects Mel, Amanda, Cleo, Jasmine, or Mr. Poulos.

Crash is obsessed with Wyatt's voice command Cassie at the time when he plans to enter the game show "Crazy Family Awesome Time.

Mr. Poulous loads up his van to go on a camping trip with his friends. Crash, Wyatt and Pesto sneak into the van to tag along.

Build-A-Bestie announces a product recall of their dolls. Wyatt and Crash must elude an agent sent to destroy Crash.