Episodes: Series - Ben 10 S1 - 2005

• episode #1
• episode #2
• episode #3
• episode #4
• episode #5
• episode #6
• episode #7
• episode #8
• episode #9
• episode #10
• episode #11
• episode #12
• episode #13

While on a road trip with his grandfather and cousin, Ben stumbles onto an alien device that gives him the ability to transform into multiple alien species.

When a vengeful geneticist attacks the city, Ben finds a surprising connection with him as they both struggle with the lack of recognition for their achievements.

After a prank causes everyone to lose trust in Ben, he struggles to find a way to get them to believe that he was attacked by a lake monster.

Ben and Max's visit to a retirement home reveals a terrible secret that puts its residents in danger.

As Max tries to help Ben hone his skills, a surprising defection helps Ben ward off Vilgax's bounty hunters.

When he gets bored at a tourist-attraction town, Ben's antics lead to the emergence of alien creatures that threaten the town.

Ben makes a new friend, Kevin, who turns out to have powers. But as Ben discovers that Kevin has his eyes on the Omnitrix, he must find a way to ward him off.

As Ben comes to grips with the danger he is inadvertently putting his family in, Vilgax turns a criminal into a cyborg and sends her after Ben.

Ben must combat his fear of clowns to save Max, Gwen, and the townspeople when a soul-draining clown jeopardizes their lives.

Ben gets a new ally when a powerful charm allows Gwen to manipulate luck, turning her into the superhero Lucky Girl.

With Ben stuck in one of his alien forms, he gets captured by alien-obsessed nerd before they are both captured by a mysterious organization that has nefarious plans for alien technology.

With an attack from a man who can control bugs underway, Ben has to deal with the effects his cold has on his various alien forms and their powers.

With Vilgax making a final play to get the Omnitrix, Max reveals surprising connections that denote a mysterious secret.