Andrew accidentally stumbles onto Dr. J's photon beam, which inadvertently gives him super powers. He also develops a crush on a wary girl who just moved in across the street.
The key component for Dr. J's latest invention is stolen by a group of wayward children. Andrew goes undercover and fakes loyalty to the gang in an attempt to recover the device, only to run into trouble when he meets the mastermind and leader of the gang, Rock, who doesn't take too kindly to Andrew.
Andrew meets Fred Cooper, the former actor of comic book legend Captain Noble. However, since Fred is retired and incapable of performing stunts, Andrew begins to lose his faith in the old man.
Dr. J reluctantly agrees to take Andrew and his friends on a camping trip. However, Andrew's friends don't enjoy having a nerd like Jeffcoate serving as their chaperone.
Just after Andrew picks a fight with the school bully, he loses his super powers after being exposed to his dentist's x-ray machine. Andrew must then face up to the bully without his powers.
While visiting Chinatown with Dr. J, Andrew develops a crush on a girl named Leah. However, the store owned by Leah's father is in danger from a local gang.
Dr. J uses his latest invention to give himself a split personality not unlike "Dr. Jekyll and Mr. Hyde", which he hopes will make him more successful with women. However, his intentions backfire when he finds himself courting Mrs. Schellenbach.
Andrew is shooting hoops in the Briarwood gym when who should enter but Bobby Spillman, Briarwood's greatest basketball player, who made the NBA draft in 1983. Bobby gives Andrew some pointers and confides that he's working across the street.
Andrew's pen pal John, who happens to be a prisoner, gets released from prison. After John meets Dr. J while dining at the Clements' house, Andrew suspects that John may still be a criminal.
Dr. J's latest invention for the Navy is targeted by spies. The spies later suspect Dr. J giving Andrew top-secret information (actually a spaghetti sauce recipe) and kidnap Andrew, along with school reporter Cassie Martin.
Mrs. Schellenbach catches Andrew using his powers on film. Andrew and Dr. J must then find a way to retrieve the tape and convince Mrs. Schellenbach that she imagined the incident.
Dr. J foolishly loses his newest formula to a client without getting paid. He then enlists the help of Andrew and the owner of a comic book store to help him get his money.
