Greg is sitting on a bench waiting for his friend Michael, across from him is a secret CIA agent with a mysterious file. The agent gets a call, leaves, and drops the file. Greg notices this and picks it up and opens it to find information about the Ark of the Covenant. He, his sister, and Michael, have been looking for the Ark of the Covenant for years because of their father who had previously tried to find it himself. Michael comes in and Greg shows him the file. The Agent comes back to find the file missing and sees that Greg and Michael holding it. Both the boys begin to run away and head to Stacie's, (Greg's sister) house. They all now face the challenge of being chased by the Agent who is now trying to receive the file back.