Hot Wheels Battle Force 5 S01E03 - Common Cold War

When the BF5 enter a battlezone that turns out to be an enormous bio-mechnical creature, Zemerik uses a Phase Metal Virus to take over control of Agura's Tangler (with Agura helplessly trapped inside). Zemerik proceeds to use the Tangler to snag the battlekey, and the rest of the BF5 thinks she's turned traitor.