As John races to free Hershel from prison, the kids face danger following the science fair.
Frank asks Beth to help him prove that he's sane; and Hershel receives visitors in jail.
Arthur and his friends look for mysteries to solve; John finds himself working with the FBI.
Season 1, Episode 5
A class project puts friendships to the test; and a puzzled Beth sets forth to figure out why Frank is acting so strange.
Season 1, Episode 4
Beth tries to connect with Arthur, who is focused on using the metal detector he built with his friends. At the same time, a reporter from the city takes an interest in the town.
As Arthur and his friends try to make sense of what's going on in the town, the sheriff investigates the involvement of a man in the base explosion.
Season 1, Episode 2
The people of Granite Flats are panic-stricken after the explosion at the army base. Meanwhile, Arthur and his new friends are determined to find out who's responsible for the incident.
Season 1, Episode 1
In the premiere of this family-friendly drama set in the 1960s, a young boy and his new friends set out to solve the mysteries surrounding their small Colorado town.