At first, there was a butterfly flying at the birds' hideout. It disturbed Red, who was taking a rest on his folding seat, and Bomb, who was busy eating ice cream. The Blues also lived there, but the butterfly did not disturb them with what they were doing. Instead of a butterfly flying there, there was a ground shaking where someone would appear. It was the Fat Pig. He sang every time while the Minion Pigs brought him with the use of a wheelbarrow because he was unable to walk to the hideout to steal and get the eggs on his own. Corporal Pig also joined the pigs to give commands to the Minion Pigs. Bomb was shocked at him and his ice cream spilled on the ground. Red was also shocked that they also shook The Eggs. Fat Pig laughed after he sang. The birds got angry at him, especially Red.
Red went to the Slingshot to hit the Fat Pig where he extended the elastic band of Slingshot and released after. He hit him, but got stuck to him because Fat Pig's body was fluffy and soft. Afterwards, he sang again where he fired Red back to his hideout. It was painful for him.
Next were The Blues. Instead of using the Slingshot to hit him, they just ran to him to hit and fight them but not before leaving their shades and caps. But Fat Pig sniffed them using his big nose. After he sniffed them, he released them back to their hideout with his nose. Bomb saw that The Blues would hit the ground hard so he used himself as a cushion to soften the impact. He then became angry.
Next was Bomb. He used the Slingshot to blow up Fat Pig. He lit his fuse, but fell onto the ground near to him when Fat Pig had a tennis racket, which caused Bomb's explosion to be on the ground.
Then, they walked over Bomb while the Birds, except Bomb, got angry at him as he continuously sang. But he bumped into Terence, the Big Brother Bird. They did not notice him when he arrived. The birds were protected by Terence at his back. When the pigs saw him, Corporal said that they would push the wheelbarrow (where Fat Pig sat) on Terence to hit him and pass over him, but Terence was too strong, while Fat Pig was fluffy. They pushed the cart three times, but still the plan did not work. Terence got angry at them when they did it, because he knew that they would steal the Eggs. He made Fat Pig roll and demolish Pig City down by using his weight to make the ground crack. When it cracked, the wheelbarrow's wheels were inserted such that it made the Fat Pig imbalanced. He rolled and the pigs ran, but they were hit by him and as he rolled down to the Pig City, he sang louder when he hit King Pig's Palace. Before they rolled down to Pig City, Bomb was almost hit by them as he moved beside them.
As the credits rolled, Fat Pig cries because his plan failed.