Tetramand Diablo (episode)

Plot
Tetramand Diablo comes back to Bellwood and is hired by Zombozo. Zombozo and Tetramand Diablo attack Plumbers` Headquarters. Ben turns into Armodrillo and fights him. Ben sees Tetramand Diablo and remembers them. In a flashback, Young Ben as Four Arms is fighting Tetramand Diablo on Galvan Prime. Easily beaten, Azmuth sets the Omnitrix to a selected alien (Grey Matter) and tells Ben to transform into it. Ben, surprised that Grey Matter will beat them, slaps down the Omnitrix. Instead of turning into Grey Matter, he is turned into Way Big and throws them off the planet. Now in the present, the Plumbers are all defeated and Tetramand Diablo, with Zombozo, go to his Amusement Park. Grandpa Max sends Ben and Rook to their hideout in Zombozo`s run-down Amusement Park along with Manny Armstrong, Helen Wheels, Magister Patelliday, Plumber Jerry, and Plumber Jaray. Zombozo spots them and calls Tetramand Diablo to fight them. Ben turns into Pesky Dust and flies out of the Tetramands` reach. The Omnitrix times out, sending Ben falling. Rook catches him and shoots at Tetramand Diablo. The Omnitrix recharges and Ben turns into Swampfire. Swampfire creates a wall of fire to block Tetramand Diablo. Tetramand Diablo puts out the fire and attacks the Plumbers. Swampfire, as a bunch of vines, slithers behind the Tetramand Diablo and turns back to normal. Tetramand Diablo spot him and Rook shoots at the leader. The rest of Tetramand Diablo attacks Ben, who turns into Rath just in time to block their attack. The Omnitrix times out and Rook continues to shoot at the Tetramands. Ben decides to turn into Grey Matter, since doing that turned him into Way Big the first time. Ben does this but turns into the selected alien, Grey Matter.