Wade is a mercenary with two voices in his head due to experimental testing. One voice advocates for stealth and sticking to the mission to steal a serum. The other voice encourages mayhem, killing and exploding everything. Wade ignores the sensible voice and launches a rocket, setting off alarms across the military base. As Wade fights his way through the compound, using human shields and returning fire, the voices continue arguing with each other while Wade tells them to be quiet so he can focus on the job.