Iron Claw Mask was part of a Black Cross scheme to expose and destroy the Gorenger base: placing it within "Object Q" which the Gorenger easily take from the Black Cross caravan, they become forced to take it to their headquarters from advice from agent 0010 (a double agent planted by the Black Cross) and a fake attack by Temujin that was easily repelled. Once inside the base, Iron Claw Mask trashes it, destroying the bikes, wrecking the equipment and reaching Variblune's hangar, where it hoped to escape and reveal the location of the secret base to its superiors.
However before it can escape, it reveals to have a weakness to a flickering fluorescent bulb within the hangar, which emits a deep sound that it can't take hearing. Discovering this, the team initially prevents Kirenger from replacing the bulb until they set up a sound projector that continously makes the noise, allowing the Gorenger to capture Iron Claw Mask once found again. However after leaving the base, Temujin destroys the sound emitter freeing the unstoppable Masked Monster again. During a final confrontation, Kirenger uses his YTC Radio to emit the same sound, freezing up Iron Claw Mask to a special Gorenger Storm "New Operation", where it burrows underground and emerges like a mole which Iron Claw Mask reaches down to grab before it explodes.
Modus and Arsenal
Iron Claw Mask's greatest asset is it's strength, being strong enough to withstand any Gorenger attack and to rip through anything, including steel doors. It has a staff with a claw-like hand similar to it's head.