He's an infiltrator who can mimic how others look.
So he pretended to be one of the assassins went to kill him, and used a holo projection so he could be two assassins.
Hitched a ride straight back to the base on the assassins' helicopter, but somebody on the helipad noticed the hologram wasn't real.
Now the building's on high alert for the invisible intruder (the holo flickered out), and Trogdor's guy (as the assassin who didn't notice his friend was a chameleon spy) lost a finger and pledged to track down... himself... to restore his honor
(It's a samurai/yakuza security firm.)
However, he's been assigned another samurai to make sure he doesn't screw up again, so he'll have to ditch the buddy before he can sneak into the ultra-high-clearance area he needs to get to...
