Whit and Tom are repairing the damage that Dr. Blackgaard and Richard Maxwell have done to the Imagination Station. In addition to making repairs, Whit is also adding a few modifications to the machine. The most interesting of these changes is that the cockpit has been divided in half so that two kids can now have an adventure at the same time.

Once the repairs are complete, Whit and Tom move to the control room to do a little programming. Tom puts up a "Keep Off" sign on the machine, but it isn't enough to stop Robyn and Jack. First, Robyn climbs in the Station. Then Jack follows to "rescue" her, and together they are whisked out of Odyssey. The two find themselves in the middle of ancient Israel during the reign of evil King Ahab and his even more evil queen, Jezebel. The king and queen hold Robyn captive, while Jack joins one of the greatest prophets in the Old Testament: Elijah. Jack's and Robyn's lives are threatened several times as they witness the prophet's bravery, his confrontation with the king and queen, his challenge to the prophets of Baal, and God's magnificent victory and total sovereignty.

When Jack and Robyn get back, they've both learned three things: 1) The Imagination Station is working again; 2) God's power is greater than anything; 3) When a sign says "Keep Off," it means "Keep Off!"