Ben 10 (2005 Cartoon Series)

Ben 10 (2005–2008) is the original Cartoon Network series that launched the franchise, following 10‑year‑old Ben Tennyson on a cross‑country summer road trip with his cousin Gwen and Grandpa Max. At their first campsite, Ben discovers a crashed alien pod containing the Omnitrix, a prototype watch that latches onto his wrist and lets him transform into a roster of alien heroes.