Back home, Calder is visited by FBI Agent Hoyt (Richard Widmark), who says the extortion money is to be delivered by Calder at Kings Dominion. There, Calder is ordered to wait at a telephone and the bomber calls, warning him there is a bomb in the park. He sends Calder a two-way radio so that he can keep contact, then orders Calder to go on various rides in the park such as the Rebel Yell roller coaster. While Calder is riding on the Skyway to the station near the Singing Mushrooms, the bomber tells Calder that the bomb is located in the radio. He warns Calder not to throw it away, because it will explode on impact on the paths below, which are occupied by many of the park's visitors. He orders Calder to falsely signal that he has made the delivery, in order to distract the FBI, then leave the money on a bench. Calder complies and walks away. Later, Hoyt admits that he marked the money (violating the bomber's instructions). Calder demands to be sent home and leaves the bomb radio with the bomb squad.