Scorpion finale
Scorpion season 1 finale will air on 20 April. CBS

The Scorpion finale could feature the much awaited kiss between the show's lead character Walter, and Paige.

Episode 21 is titled Cliffhanger, which will air on 13 April 2015.

Cabe's secret about the Baghdad mission will finally come out, which will shock the genius.

The episode synopsis reads: "Walter finally learns Cabe's long-kept secret regarding the Baghdad mission, and it threatens to tear Team Scorpion apart forever. Also, Paige's world is rocked when Ralph puts his life in danger to help the team."

Episode 22 titled Postcards From The Edge, will serve as the season 1 finale and air on 20 April.

The leader of Team Scorpion is in for an emotional hurricane of his own, during the season finale.

"Let's just say that Walter is dealt one too many emotional blows that drive him possibly over the edge - and that isn't necessarily just a figure of speech," the TV Line report said indicating that Cliffhanger will have a heavy influence on Postcards From The Edge. "That, coupled with two other twists, makes the big question entering the season finale no less than: Is Team Scorpion dunzo?!"

According to a report in Spoiler TV, the season finale of Scorpion sees Walter's life in danger. As team Scorpion and several rescue crews attempt to save him, they realise just how perilous the situation is. With a remote chance of survival, Walter's only wish is to see Paige, but she is nowhere to be found. The episode will end with an admission, a kiss and many tears.

Will Walter and Paige finally express their feelings for each other?

Scorpion airs on Mondays at 9pm on CBS.