16 year old Alex Lansing is extremely tormented by his younger brother, Stevie. Stevie has played pranks on Alex, such as buying a turkey from a pet adoption show and making jocks slam a pizza on Alex's head. Most recently, Alex is forced to take Stevie to the mall with him and his friend James. Stevie receives a magical coin which allows him to wish anything, and runs off in the mall without telling Alex. Alex’s parents angrily punish him having enough with his carelessness with Stevie, and send them to bed early. After Stevie gives Alex the coin, Alex upsettingly wishes that he had never had a little brother. The next day, he wakes up, only to find that his wish has come true. Stevie is now a spoiled child actor, "Terrence Russell McCormack" on a TV show named "Where's Stevie?". Although a cheerleader is his girlfriend now and he is mostly popular in school, Alex soon regrets a few things & that is his new popular jock friends are now tormenting his other friends and Fiona the cheerleader is revealed to be crude, mean and have a bossy attitude. After a while, Alex began to miss Stevie because Alex's parents are career-obsessed, which makes Alex feel lonely at his home. After being kicked out of Terrance's dressing room because Terrance thinks he's crazy when he tells him about him being Stevie, Alex reflects on his life with Stevie and realizes how much he cares about him and misses him. As Alex walks home, Terrance drives by and decides to walk with Alex who he considers his friend despite thinking he's crazy. The two escape from Terrance's driver and after realizing that this happened because of the coin, Alex and Terrance set out to find the coin, enlisting the help of Abby who Alex convinces because of his different behavior. The three locate the man who gave Stevie the coin, but he was injured without Stevie there to save him and had to close his shop and sold off the coin. After saying goodbye to Abby, Alex and Terrance are caught by the police and are taken to Alex's home where Terrance's caretaker comes to get him with the intention of covering up his running away. Terrance gets a call from his mother and is excited as he had the best night of his life, but quickly loses his excitement when learns that his mother is getting remarried. Alex and Terrance share a brotherly hug and say goodbye and Alex slips into a depression because he has no chance of returning to his world. The next day, while Alex is trying to find something on TV that doesn't remind him of his relationship with Stevie, his father gives him a bunch of old coins he bought to try to cheer him up, but Alex throws them across the room, then discovers that one is the magic coin. Alex gets it, but his shout of excitement frightens his parents due to his emotional state and they decide to break his door down when he won't open it. Before they can, Alex wishes that he never made the first wish and wakes up back in his own world with none of it having ever happened. Alex excitedly embraces Stevie and his friends and asks Abby out while yelling to a passing Fiona that he's not her boyfriend, and everyone is confused with his excitement. Later, Alex, James and Abby go skating and take Stevie with them and try to teach him to skate. He gives up, but then uses the coin to become a great skater.
Cast
A.J. Trauth as Alex Lansing
Spencer Breslin as Stevie Lansing/Terrence Russell McCormack