During Tri State Area conquest, Major Monogram sends a group of Agents commanded by Terry and conformed by Peter the Panda, Pinky the Chihuahua and Terry the Turtle to stop Heinz Doofenshmirtz and Perry the Platyborg but all were fail, Doofenshmirtz capture all of them and he rebuilt them with cyborg parts. Terry was integrated as the second in comand of Doofenshmirtz Cyborg Legion, His first Mission was Destroy The O.W.C.A. and capture all the agents.
2nd Dimension: Candace's Cronicles
In the series When Platyborg was defeated again by The Resistance, Doofenshmirtz sends a Replacement to destroy The Resistance, Meanwhile Terry's Family are thinking why he has dessapeared for a long time, During a exploration, Tyrannobot surprises his Former Owner and his former partners discovered the true.
Phineas and Ferb: across the 2nd Dimension
In the movie when Professor Destructicon with Rai Kids, Kiki the Fox, Terry the Tyrannosaurus, Spiny and Tank opened another portal to the 2nd Dimension, Doofenshmirtz ordered to Tyrannobot attack Kiki and Terry but their don't react at the attack but when Doofenshmirtz ordered to him attack the kids, Terry and Kiki went to protect them punching Tyrannobot revealing their identy as Secret Agents, Doof ordered to Tyrannobot destroy the two Agents. When Phineas, Ferb, Candace, Spiny, Tank, Baljeet's Siblings, The Resistance (Candace 2, Isabella 2, Buford 2, Spiny 2, Tank 2, Bowser 2, Bowser Jr. 2, Ludwig von Koopa 2 ) went to rescue the three agents, The Normbots, the 2 Doofs, Platyborg, Tyrannobot, Turtledrone, Cyberflamingo and Chihuahuaborg surprends their, Doof ordered to their capture Phineas and Ferb. During the invasion of the 1st Dimension Tri State Area, he has a fight with Terry and Kiki, their kicks him to a electricity depot uncorrupting him and he backs with his family