This story is based on the crazy antics of five friends and the activities that they encounter in their summer vacation prior to entering high school as freshmen. The setting is the summer of 1967 in a beautiful suburb located in Southern California.

The five buddies have a wild imagination, and utilizing that, they are able to pursue many fun and exciting adventures. The buddies have a fantasy to help society, so they decide to start the summer by building a hidden headquarters where they can secretly meet and plan their escapades. The HQ is built, the meetings are started, and the future of the GASS gang begins. A unique discovery provides the boys with unusual abilities that enhance and expand the possibilities for the group.

As the story unfolds, there is a series of three vicious physical attacks on some local senior couples. The couples are beaten, threatened, and robbed of their cash or expensive belongings. One of the senior couples is the grandparents of one of the GASS members. The local police investigates but are unable to solve the crimes.

Since one of their own is a victim, the group decides that they would like to assist in investigating the crime. Eventually, they become involved in attempting to solve the crime that the police are unable to solve, finally turning this cold case into a solved case. Their unique ability and their creativity leads to some interesting tactics to assist them in getting to the bottom of the senior attacks.

This involvement in the crime-solving world starts the ball rolling on a series of adventures that lead to a crime-solving conclusion. Some unique twists and turns along the way provide the youngsters with the passion and creativity to push forward and help solve these heinous crimes. Finally, the GASS gang turns this cold case into a solved case.