Digimon Adventure

Digimon Adventure is the first season in the Digimon anime (animated series), and in this season the viewers first encounter the Digital World and the Digimon.

Plot
Seven kids (Tai, Matt, Sora, Izzy, Mimi, Joe and T.K.) are sent to summer camp, when all of a sudden they are transported to the Digital World and meet their Digimon partners. There is a partner for each kid, and together they must save File Island from Devimon's evil claws. After they do that, a hologram of an old man named Gennai tells them to go to the continent of Server, find their tags and crests and defeat another enemy called "Etemon".