Tom pokes his head over the wall of a sunny backyard and notices Toodles Galore in the window, while a doghouse labeled “Killer” sits nearby with Spike inside. In a cheeky display of acrobatics, Tom has brought along a string instrument that resembles a hybrid between a double bass and a cello. With a swift leap over the fence, he neutralizes Spike not by brute force but by a quick whistle at the dog and a light tap to the head with a mallet, followed by tying Spike up. Then he uses the cello-like instrument as a pogo stick, bouncing across gaps and stopping to flick Spike’s nose along the way, turning a tense moment into comic agility.
The tune Tom plays, a lively rendition of a familiar tune, is specifically the number Is You Is or Is You Ain't My Baby. He performs it with flair for Toodles, and the cheerful melody fills the yard and beyond. The music has a ripple effect that jolts Jerry awake from his sleep inside a mousehole tucked inside a mailbox. Jerry pokes his head out through the mail slot, ears twitching at the racket, and quickly scuttles back to bed, trying to shield himself with a pillow. Yet the sound waves from the instrument shake Jerry’s entire mousehole, sending him tumbling out and skittering under a table, all while a flower pot vibrates across the surface above him and finally drops with comic timing.
Outside, Tom treats the instrument as a multi-purpose tool—he uses it as a bow to propel himself toward Spike, who remains bound for now. He torments Spike by plucking the dog’s mouth, then dashes back to his instrument as the scene shifts inside the house. Jerry’s mischief continues; his bed’s cushions ruffle and his items are knocked askew by the relentless vibrations. A match slips and slams down on the lid of the mousehole, adding to Jerry’s misfortune until he finally decides to strike back. He abandons his nightcap, exits the mousehole, and hatches a plan to strike back by stuffing an iron into a pie and flinging it at Tom through an open window. Tom’s anger flares, but the show must go on as he plows through with more music and movement.
The cat-cat-and-mouse chase intensifies as Tom and Jerry race through the kitchen. They tumble over an ironing board, and Jerry drains the kitchen sink, creating a splashy obstacle that sends Tom crashing into a cabinet of dishes. Tom trails Jerry through an open window, but Jerry pulls out the window stop, which clatters to Tom’s neck and brings a painful shriek. Jerry then hurries outside and unties Spike, who bursts forth with a thunderous bull roar. Spike’s demeanor flips from restrained to ferocious, and he confronts Tom with a renewed, more dangerous vigor.
Spike’s teeth become a focal point of the chase—larger teeth protrude as the dog fights back, seemingly a threat that Tom barely dodges. Tom hides behind a wall, bracing with a brick-like resolve to strike, only to have Spike topple to the ground after a well-aimed hit. Jerry reframes the moment, reviving Spike by smartly tapping him with a wooden plank on his hind end. After a quick flurry of blows, Tom slams Spike again, and the dog whips into action, turning the tide against the cat.
In a moment of trickery, Tom tries to turn the tables by convincing Spike that the board is a simple stick used for “fetch.” Spike, eager to play along, chases the fake stick, but the playful ruse bites back when Tom reveals his ruse to be a ploy, not a game. A back-and-forth chase erupts between Tom and Spike, with Toodles Galore watching from a safe distance. Tom manages a flirtatious interlude, puckering up to kiss Toodles on several passes, hoping to distract Spike. However, Spike catches on to this charade and blocks the third attempt, forcing Tom into a quick realization that he’s been outmaneuvered in his own plan. A rapid clash follows, and the momentum of the chase ends with Tom receiving a painful dose of misfortune as Spike’s momentum sends him crashing to the ground.
A tense moment arrives when Tom flees but is tracked by Spike, who charges into Spike’s doghouse. The door shuts behind Tom in a fiendish, maniacal laugh and a Dracula-like leer, only for Jerry to reappear moments later, assisted by Spike who helps Jerry drag him out. The doghouse reels with chaos as Spike knocks Tom around, and the cat finds himself overwhelmed and ultimately captured again. Tom hastily writes a final will in a last-ditch effort to preserve his feline pride before Spike executes a decisive finish, delivering a beating that leaves Tom in a battered state.
Yet the end reshapes the dynamic into a musical finale: Spike, in a surprising twist, ends up using Tom’s own instrument as the instrument’s strings. Spike strums Tom’s tail while Jerry (in control of the bow) plays a dramatic ostinato on Tom’s whiskers, and Toodles Galore watches the whole spectacle, a chorus of chaos and comedy illuminating the backyard showdown. The pairing of cat and mouse, amplified by the absurdity of it all, resolves with a surreal, musical pay-off that cements this playful chase as a memorable slice of cartoon mayhem.
