In a barn, a mother duck is sleeping, in a nest of eggs. A stray egg rolls from the nest. As the duckling starts to hatch it blindly walks to find its mother's nest and slips under a sleeping Tom outside the barn, thinking that is his mother. Tom wakes up, feeling disturbed, but he accidentally sits on the egg, causing Quacker to hatch from it. The naive duckling immediately assumes that Tom is his mother and hugs him (as Tom was the first thing Quacker saw upon hatching). While the little duckling compliments "mommy", Tom gets two sticks and some firewood and lights a fire. He grabs a stick and ties Quacker to it. He puts the stick above the fire, to "warm the duckling up". Jerry walks into the scene and becomes shocked when he sees this. When Tom isn't looking, Jerry substitutes Quacker with his tail on the spit. Tom adds salt and pepper to his own tail without realising it. When his tail catches fire, he jumps and yowls in pain. Jerry runs to the side of the barn and unties Quacker from the stick. However, the duckling thinks that Jerry is a kidnapper and runs and shouts for help. While Tom is blowing the fire off his tail, Quacker runs to him and hugs his face asking for his help. Tom raises and lowers his eyes, as if to agree. In the kitchen, he is making a bed for Quacker out of pastry which, for Quacker, "is just the right size".
He takes Quacker to his new "bedroom": the oven. He opens the oven door and puts the duckling into it. Before he closes the oven door, Quacker says goodnight. Jerry, using a broom, smacks Tom on the head and slams him unconscious with the oven door. He grabs the bed, with Quacker in it, and runs to his mousehole. The duckling jumps out of the bed and runs to his unconscious "mother". He revives Tom using a jug of water. A now conscious Tom grabs Quacker and the duckling kisses him. In order to begin a "Stuffed Roast Duckling," Tom has prepared a pudding for Quacker. He feeds the pudding to him until Quacker is an obese duck, puts him into a tray full of potatoes and carrots and puts small broccoli pieces on to his feet. He puts a lid on the tray, places it in the oven and locks the oven door. Jerry, using a can opener, cuts open part of the oven door.
Quacker promptly throws carrots and potatoes at the little mouse, and while he is carried, hits him with a leftover carrot. Jerry carries the angry duckling into his mousehole and throws the carrot away and shows him a picture book. On the left page is a mother duck and a Quacker lookalike. On the right page is a grey kitten and a lookalike of Tom. The duckling looks at both pages and hugs the right page, thinking its a lookalike of his "mommy". Jerry angrily walks over and points at the left page as if to say "This is your mother, duck!". Quacker promptly says that "That's not my mommy!" refusing to believe it, slams the book in Jerry's face, then runs away. Jerry walks out flat and frowns. Tom, appearing to have figured out what happened, sees Quacker run into the house, traps Jerry in a can, puts him in several other cans, ties them all up and he throws it down a well. Tom is now stirring some food in a pot and Quacker reading a cooking book. Thinking that his "mother" is cooking dinner, Quacker helps him sit down and grabs the spoon. He reads part of the page shown, which reads "PLACE YOUNG DUCK IN POT OF BOILING WATER...". Briefly fascinated, Quacker asks where they can get a little duck, then he remembers the book that Jerry showed earlier. Quacker then gulps.
"He" is the little duck (Quacker completely misinterpreted the earlier shown book, not actually realizing that Tom is NOT his mother). Apparently, Tom wanted to cook and eat him all along, but his conscience gets the better of him. In an act of attempted suicide, Quacker lays the spoon at the tip of the pot making a quick bridge so he would throw himself in the boiling water. Quacker wants to cook himself for his "mommy" since "she" wanted that. Tom starts to approach as the duckling says good-bye and that "I still love you, momma.", before he dives in. Having a change of heart, Tom puts a stop to this immediately by grabbing the duckling in mid-air a few inches away from the boiling water crying out "NO!" as the duckling is about to be his "momma's" supper. And then Tom hugs Quacker with a river of tears flowing down his cheeks smiling at the duckling. Tom realizes that he would have missed him more than have a good duck dinner. Jerry escapes from the well and runs to the boiling pot on the stove, then he runs to the window and sees Quacker with Tom. Outside, Tom has adopted the duckling as his own child and playfully leads Quacker across the nearby duck pond, with "mother" and son quacking constantly at each other. The pleased duckling exclaims to Jerry: "That's my mommy!" pointing his finger to the cat.
- This is the first Tom and Jerry cartoon produced by William Hanna and Joseph Barbera following the retirement of producer Fred Quimby. Beginning from this cartoon, the rest of the Hanna-Barbera era Tom and Jerry cartoons from 1955-1958 are produced entirely in CinemaScope.
- This is the final cartoon to have the 1953-55 Tom and Jerry title card. However, reissues from this point onward would continue to use the title card.
- Unlike most cartoons and like Downhearted Duckling, Quacker and Jerry are enemies instead of friends (actually, in this episode, Quacker thinks that Jerry is his enemy while in fact, Jerry tries to save him from Tom).
- This is one of the fourteen cartoons in which Tom triumphs. The others are The Million Dollar Cat, The Bodyguard, Jerry's Diary, Nit-Witty Kitty, Hic-cup Pup, Little School Mouse, Southbound Duckling, Mouse for Sale, Timid Tabby, The Vanishing Duck, The Year of the Mouse, Duel Personality, and Love Me, Love My Mouse.
- This is one of the only two cartoons where Quacker defeats Jerry. The other is Downhearted Duckling.
- In one shot when Quacker repeatedly hitting Jerry with a carrot, his mouth isn't moving while yelling at Jerry.