Today may be Valentine's Day, but the citizens of National City will celebrate the holiday next Monday in a special "Supergirl" episode guest-starring the magical imp -- and iconic Superman foe -- Mr.Mxyzptlk. The episode, appropriately titled "Mr. & Mrs. Mxyzptlk," will see Peter Gadiot inhabit a much less impish version of the role as he tries to woe Kara Danvers. The CW has dropped a trailer for the episode, which shows the lengths Mr. Mxyzptlk goes to in order to grab Kara's attention.

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The synopsis, which you can check out below, also reveals that the Valentine's Day plot between Alex and Maggie originally intended for last night's "Luthors" episode has been bumped to next week's installment.

DC COMICS’ MR. MXYZPTLK HITS NATIONAL CITY – When Mr. Mxyzptlk (guest star Peter Gadiot), a magical imp, shows up on Earth and declares his love for Kara (Melissa Benoist), she tries to let him down easy, thinking him harmless. However, he decides it’s a challenge and starts to wreak havoc on National City. Mon-El (Chris Wood) has seen beings like Mr. Mxyzptlk on Daxam and knows how dangerous they can be. He and Kara argue over how to get rid of Mr. Mxyzptlk, further straining their relationship. Meanwhile, Alex (Chyler Leigh) and Maggie (Floriana Lima) celebrate their first Valentine’s Day together. Stefan Pleszczynski directed the episode written by Jessica Queller & Sterling Gates.

Starring Melissa Benoist as the Girl of Steel, "Supergirl" airs Mondays at 8 pm ET/PT on The CW. The series also stars David Harewood as Martian Manhunter, Mehcad Brooks as Jimmy Olsen, Chyler Leigh as Alex Danvers and Jeremy Jordan as Winn Schott and features appearances by Calista Flockhart's Cat Grant as well as Tyler Hoechlin's Superman.