The upcoming two-part episode of ABC's Castle will apparently be a roller coaster of emotions, according to one of the show's stars.

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The two-part episode, which is set to air in February, is slated to feature the return of 3XK (Michael Mosley) and Dr. Kelly Nieman (Annie Wersching), and fans will not want to miss it. Tamala Jones, who plays Lanie on Castle, recently spoke with TVLine about the explosive episodes and it's safe to say that it will be huge.

"You've never seen a Castle episode like these. It's completely outrageous," Jones revealed. "You're going to cry, you're going to think someone died.... Your mind and your heart are going to be one."

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There is going to be a cliffhanger at the end of the first episode that will apparently leave the audience "pissed that Part 2 isn't coming on the next day."

The second episode will feature a conclusion that is "emotionally driven" though, especially for Kate (Stana Katic), in addition to other characters. "There's some serious, serious ish going on!"

In the mean time, Castle is pursing the storyline of Castle (Nathan Fillion) being a private investigator, working/competing against Kate and the 12th Precinct on various cases. It remains to be seen how long the private eye storyline will be taking place, though with the 3XK storyline coming so soon, it may end fairly quickly.

Castle airs Mondays at 10 p.m. ET/PT on ABC.

Watch the promo for the next episode of Castle here:

Tags: Castle television ABC