A scientist mouse invents a secret strength formula that can give a mouse the strength of ten cats. After testing the formula against a robotic cat, Speedy Gonzales is tasked with bringing the formula to a cheese factory. Unfortunately, Daffy Duck has been sent by a cat rival agency hosted by Sam Cat to stop him.
Daffy flies out of the agency using a jetpack and to where Speedy is, but the jetpack runs out gas and Daffy crashes down a manhole. Daffy uses a spymobile to ram after Speedy, but he eventually crashes into a cement truck. Using the remains of his car, Daffy uses a machine gun against Speedy, but misses until he gets crushed and electrocuted by a telephone pole. When Speedy makes it to the cheese factory, Daffy tries to ambush him with a hand gun until Daffy blasts himself. The final plan, a mouse-seeking missile, is changed by Speedy to a duck-seeking missile; Daffy frantically returns to his base and it blows up there, destroying the office while Sam is still in there. Speedy pops in the door, "I want to tell you a secret. Us good guys always win!"
- On CBS, the following parts are cut:
- Daffy crashing his car into a telephone pole and getting electrocuted by a falling wire.
- Daffy and Sam getting blown up by the mouse-seeking missile.
- This was the last of the three "buffer cartoons" produced by Format Films in between Warner Bros. ending its contract with previous Looney Tunes producers DePatie-Freleng Enterprises and re-establishing its own cartoon studio. Likewise, it is also the last short Rudy Larriva directed.
- Sam Cat, who previously appeared in "Mouse and Garden", returns in this short, he would make one last appearance in "Merlin the Magic Mouse".
|Speedy Gonzales Cartoons|
|1953||Cat-Tails for Two|
|1957||Tabasco Road • Gonzales' Tamales|
|1959||Mexicali Shmoes • Here Today, Gone Tamale|
|1960||West of the Pesos|
|1961||Cannery Woe • The Pied Piper of Guadalupe|
|1963||Mexican Cat Dance • Chili Weather|
|1964||A Message to Gracias • Nuts and Volts • Pancho's Hideaway • Road to Andalay|
|1965||It's Nice to Have a Mouse Around the House • Cats and Bruises • The Wild Chase • Moby Duck • Assault and Peppered • Well Worn Daffy • Chili Corn Corny • Go Go Amigo|
|1966||The Astroduck • Mucho Locos • Mexican Mousepiece • Daffy Rents • A-Haunting We Will Go • Snow Excuse • A Squeak in the Deep • Feather Finger • Swing Ding Amigo • A Taste of Catnip|
|1967||Daffy's Diner • Quacker Tracker • The Music Mice-Tro • The Spy Swatter • Speedy Ghost to Town • Rodent to Stardom • Go Away Stowaway • Fiesta Fiasco|
|1968||Skyscraper Caper • See Ya Later Gladiator|
|1979||Fright Before Christmas|
|1980||The Chocolate Chase|