Ben, Gwen and Kevin are watching TV when they hear a doorbell. Ben opens the door and sees Tack asking him to let him join his team. Ben accepts it and shows him his house and takes him out for a tour of Bellwood. While in the techadon factory there is a new techadon coming to destroy Ben. Meanwhile, Gwen calls Ben to ask where his parents are, he replys they are gone to England. When Ben shows Tack some places, they go home. While returning home, they are attacked by the Techadon Robot. Ben calls Gwen and Kevin to come to help them, while Ben transforms into Rath and attacks it but is smashed away, Tack uses his weapons to make it weak but it has no effect. Gwen and Kevin arrive and battle is but Techadon's one punch easily beats them. Rath wakes up and says "LETME TELLYOU SOMETHING TECHADON ROBOT YOU ARE GOING DOWN".
While Kevin laughs, Gwen stops him. Techadon punches Rath so hard that he changes back to Ben. Tack attacks him but fails , Techadon is about to finish him when Ben transforms himself into Fasttrack and saves him. Fasttrack then changes into Goop and avoids Techadon's attacks, he tries to go into his body but fails when he gets hit by a laser beam and turns back to Ben. Techadon tries to destroy Ben, but is stopped by Kevin and Gwen. Ben goes for Eatle but is turned Four Arms instead. Four Arms weakens Techadon Robot for a little time but is defeated. Kevin, Gwen and Tack attack at once. Techadon get's hurt but defeats them with a strong laser beam, Ben figures out how to defeat it so he uses Swampfire and uses his seeds to trap the techadon and then blast fireballs and blasts. The Techadon gets burned and starts to grow weak. Swampfire punches and throws fire blasts to finish the job. The Techadon is defeated and they go home talking about some jokes.