The three brothers use their favorite building-block toys to make a block sword, a block shield, and a block gun, getting ready to play a monster-fighting game. Their mother brings out magical monster cards and lets the three brothers draw them. Together with their toy puppy, they draw four cards in total: the Bear Monster, Balloon Monster, Red-Eyed Monster, and Block Car Monster. Working together, the three brothers and their toy puppy successfully defeat all the monsters.