On the eve of his 13th birthday, Ranger and Mel lead Gortimer on a scavenger hunt through town to find the fabled lost treasure of Normal Street.

With his Dad in town for a short visit, Gortimer goes out of his way to ensure his happiness doesn't fade by creating a rainbow over Normal Street. But once all of the residents start acting unusually happy, Mel and Ranger wonder if he's gone a step too far.

Gortimer is haunted by the sound of a mysterious violin, which interferes with his studies and his sleep. Gortimer realizes he can't hide the truth about his slipping grades from his Biologist Dad.

After receiving some bombshell news, Gortimer escapes to the comfort of his favorite TV show, the campy '60s superhero series, "Adventures of White Hat." But once an inter-dimensional transporter gets involved, Gortimer takes his escapism to a new level.

The trio decides to gather all the special items from their old adventures and place them safely in a time capsule. But as they accumulate mementos of their past, doubts set in about their future.