Christmas is finally here, but not for Team Scorpion. When the entire town is celebrating and rejoicing, Cabe and his men will try their best to save it from drowning as a huge dam has broken, in the Winter finale episode of CBS' "Scorpion", titled "Dam Breakthrough".

The synopsis of the episode, as mentioned by, says the team must on Christmas Eve stop a dam from breaking and wiping out an entire town after torrential rain results in a crack in the dam.

In the previous episode, titled "The Old College Try", as the team dealt with Megan's death, they stopped a cyber-terrorist from using code written by college students who threatened to shut down the US Federal Reserve if they wouldn't receive a quarter of a billion in bitcoin in the next 72 hours.

Before their mission, they had to go undercover at a local university. Happy went as a sorority pledge, Walter as a visiting drama instructor, Sylvester as a wrestling transfer student, Cabe as a campus security guard, and Toby as a professor applying for a position in the Psychology Department headed by a former rival who stole his fiancée.

However, in order to track this unknown hacker and kill the ransomware, they had to get into the school's server which was a highly sophisticated quantum computer.

Meanwhile, Walter conducted an experiment by using Toggle's tank acquired from police evidence storage to prove that Ray's firefighting partner's death wasn't Ray's fault.

Ray discovered that the submerged tank had liquid glycerin, which once hardens prevented any air leakage from the tank. However, it also caused some air bubbles to form around the tank.

The test proved that the tank was defective, giving Ray the peace of mind to go back into the world again as he left the Scorpion headquarters.