The show follows the adventures of the title character, Pac-Man, his wife Pepper Pac-Man, their child Pac-Baby, their dog Chomp-Chomp and their cat Sour Puss. The family lives in Pac-Land, a place in which the geography and architecture seem to revolve primarily around spheres and sphere-like shapes.
Most episodes of the series center around the ongoing battle between the Pac family and their only known enemies, the Ghost Monsters: Blinky, Inky, Pinky, Clyde, and Sue. They work for Mezmaron, a mysterious figure who resembles Darth Vader from Star Wars: The Original Trilogy and acts similarly to Gargamel from fellow H-B show The Smurfs. Mezmaron's sole mission is to locate and control the source of "Power Pellets", which serve as the primary food and power source for the city, and also as the deus ex machina in virtually every episode.The second season later introduces Super-Pac and Pac-Man's nephew P.J.