Full Spead Ahead

Why does a drifter get handed a badge and a motorcycle in Mexico City's elite police unit? Pedro Chávez Pérez (Pedro Infante) takes the job and moves in with Luis Macías (Luis Aguilar), a fellow officer whose girlfriend and he spend most of their time trying to make each other jealous. Ismael Rodríguez sets the two men against each other over women and over who rides the best stunts, and the friendship that holds the unit together is what they stand to lose.