Perez accompanied Sanchez to his mistress Lupe Lamora's home, catching her with another man. While Braun held the man by his arms, Dario cut out his heart. Perez and Braun escaped with Dario into hiding as Sanchez was arrested by the DEA.
As James Bond and Pam Bouvier were secretly sabotaging Sanchez's operation and framing other subordinates of his with treachery, Perez found money stolen by Bond in Milton Krest's decompression chamber, leading to Sanchez suspecting Krest's betrayal . Perez served as a witnesses to Krest's execution afterwards.
He was also present at Sanchez's chemical plant where the cocaine they trafficked was to be ground up and mixed into gasoline for transport via gasoline trucks. After being forced to evacuate the facility with the tankers, Perez attempted to destroy a tanker hijacked by Bond with a stinger missile but to his surprise missed due to adroit maneuvers by Bond. Perez and other henchmen attempted to shoot at Bond's tanker but were blinded by dust dropped from Pam Bouvier's plane.
Braun caught up to the convoy and, with Perez riding shotgun and the other thugs riding in the back, drove after Bond. Braun showed off his recklessness by driving through a wall of flame from a destroyed tanker causing the henchman riding in the back to jump out to safety and setting his tires on fire. Seeing Bond hanging onto the back of a tanker Perez attempted to shoot at Bond, but the agent opened a gas valve in the tanker and dumped a long trail of spilled gasoline on the road. The already burning tires of Braun's pickup truck suddenly combusted from the spilled gasoline, causing Braun to lose control of the truck. The burning truck careened off the road, barely missing Pam Bouvier's plane, and tumbled into the air ensuring them a ghastly demise.