Granny sets out to prove that cats aren't the planet's smartest animals by sending Tweety around the world in 80 days. Dozens of felines are in hot pursuit, but Sylvester plans to be the one to catch the industrious little canary for himself. Bugs Bunny, Daffy Duck, Yosemite Sam, Marvin the Martian, the Tasmanian Devil and dozens of other classic Looney Tunes characters make cameo appearances in this full-length Tweety adventure.