Maxie tests the rocket-powered skates.
Highly secret latest form of troop carrier for the Army.
The Chief orders Maxwell Smart to learn how to roller skate by that afternoon to test the skates in Grand Central Park.
Unbeknownst to him, the evil Crime International Network, headquartered under the park, is planning to steal said skates as part of a kidnap attempt on the President by their Elizabethan Skate Dancing Team.
[Comic Strip Story #5 (Unofficial title: "Rocket'n'Roll").]