Speed is recuperating in a room at the National Hospital. The President is also in the hospital in room 1. Of course, Speed is in room 5. Rudolph Elegantor is there to pay his compliments on behalf of Vice President Duper, who looks a little like Hitler without a mustache. Speed is invited to the Vice President's home.

Racer X also pays a visit, but when he hears of the invitation to Duper's home, he changes. Could he be a secret agent?

Speed visits the Vice President, who lives underground. Speed is locked in a room to wait for the Vice President. Speed is escorted to see the Vice President, but on the way, a gun is pulled on him. Speed wrestles the gun away, but his advantage is short-lived. He gets hit over the head.

The Mach Five leaves with someone disguised as Speed. Racer X arrives at Duper's home and is told Speed left. He takes off in search of his long-lost brother.

Meanwhile, Speed is really in the trunk of the Mach Five, still unconscious. He's put in the car and the Mach F