Scorpion fans are eager for Happy and Toby to become and item, and their story will take a major step in episode 15.

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Toby is clearly smitten with the team's resident mechanic, but Happy's life has taught her to mask her emotions, quickly turning any pain into anger. That doesn't mean the two are entirely incompatible, just a tad complicated.

"That's a very complicated relationship," said executive producer Nick Santora, according to TV Line. "Toby is a student of human behavior and emotion, and Happy's an expert at hiding her emotions. We want to see them progress toward hopefully getting together one day, and while we can't promise if that will happen or not, we're moving that relationship along. And it might take a big step in Episode 15."

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CBS has yet to release the title for episode 15, but it will come after the midseason premiere (episode 13). Before Walter O'Brien's team disappears for the winter hiatus, however, the geniuses must uncover the culprit behind an explosion that leave Walter seriously wounded before spending Christmas Eve rescuing a trapped boy in "Revenge" and "Dominoes," respectfully.

Find out more when Scorpion airs Mondays at 9 p.m. ET on SBC. Click the video below to see a preview for the series' next episode, "Revenge."