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This guide breaks down every series in the franchise, their major story arcs, and must-watch episodes.

This season introduces Ben Tennyson, his cousin Gwen, and Grandpa Max, as they embark on a summer road trip across the United States.

This season focuses on Ben learning more about the Omnitrix and encountering Doctor Animo and Ghostfreak.

Here is the episode list for the original animated series (2005–2008).