Season 1
13 episodes · Apr 18, 2008
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S1E1Ben 10 Returns (1)
Apr 18, 200823mBen discovers that the Forever Knights are trading weapons with the DNAliens, while at the same time, Grandpa Max has mysteriously gone missing. He decides to return the Omnitrix on his wrist and go hero once again.
S1E2Ben 10 Returns (2)
Apr 18, 200823mBen, Gwen, and Kevin follow a lead that takes them to a secret base in the desert. There they hope to find Grandpa Max but instead find a Highbreed spaceship with a giant cannon.
S1E3Everybody Talks About the Weather
Apr 26, 200823mGwen discovers that Grandpa Max's badge is able to signal other Plumbers. However, by using it, they meet up with a familiar face, a pyronite.
S1E4Kevin's Big Score
May 3, 200823mKevin shatters Ben and Gwen's trust when he steals the Rust Bucket to sell for alien technology on the black market.
S1E5All that Glitters
May 10, 200823mGrandpa Max leaves Ben a series of instructions to contact a team of heroes. Things go the wrong direction when they soon find them.
S1E6Max Out
May 17, 200823mGwen's older brother, Ken, is suddenly missing. As they look, they encounter a surprise leading to a shocking secret from the DNAliens.
S1E7Pier Pressure
May 31, 200823mWhile Ben has a date with Julie, it is soon ruined when an alien named Ship makes trouble at the local fair.
S1E8What Are Little Girls Made Of?
Jun 7, 200823mWhen Ben and Gwen learn that their grandmother Verdona is an alien being, Verdona insists that Gwen should come along with her to her home planet and improve her abilities. With this, Gwen is faced with a difficult decision between a human and alien life.
S1E9The Gauntlet
Jun 14, 200823mWhen Ben stands up to Cash and JT, they soon discover a robotic gauntlet from Kevin's vehicle. With it, Cash decides to get back on Ben, although this time, it's more than just a joke.
S1E10Paradox
Jul 5, 200823mA time experiment in the 1950s sends a bizarre monster to Ben's time. Now Ben, Gwen, and Kevin must team up with Paradox, a time traveling hero, to face off against the unstoppable creature.
S1E11Be-Knighted
Jul 12, 200823mThe Forever Knights secure a weapon in hopes of aiding them slay a dragon they have held captive.
S1E12Plumber's Helpers
Jul 19, 200823mFreelance young Plumbers mistake Ben and his team as a threat.
S1E13X = Ben + 2
Aug 31, 200823mAn alien emperor plans to destroy the planet Earth for kidnapping his daughter. In order to save the planet, Ben must uncover the secrets of Alien X.