Homeland noted an attempted hack of a nuclear silo, and they want Team Scorpion to figure out who did the hack. It's all tied back to an incident 16 years ago where the armed detail guarding the football was attacked. Bruce, the man holding the football, was shot, and while the medics were treating him, the football was stolen.
The team believes that they need to find the football to stop the hacker from detonating nuclear missiles, and the only way to do that is to juice up Bruce's brain. In order to test the safety of the brain charger, Cabe goes first. When Bruce goes, he saw a man with a blue finger pick up the football.
Meanwhile, the hackers is currently hacking again. Homeland estimates that there are 2 hours before the hackers have control over silo's mainframe. Current theory is that a man with a busted up finger grabbed the football, so they go look up medical records.
Using the captured the secret service agent who picked up the football 16 years ago, the team jogs Bruce's memory. He remembers the tones of the number that was dialed after the blue fingered man picked up the briefcase. The team manages to track down who owned the phone number all those years ago. When they locate him, he takes off running with the football. All he has to do is press the button whenever the missiles are ready to be launched.
After being cornered, the suspect throws the football onto a railroad track. The missiles are ready, and once the train runs over the case, the button will be pushed and nuclear missiles will be launched towards Russia. Thankfully, Happy is awesome and manages to get the train to stop right before it gets to the football.
Drew provides Paige with a pamphlet for a gifted school in Portland in case Paige changes her mind about moving to Portland. After a failed attempt at stating why Paige and Ralph should stay, Walter tries again, this time opening up and sharing how much Ralph means to him.