Prepare yourselves, Shadowhunters fans! The episode airing Monday, March 25, is going to be another action-packed installment. Titled "To the Night Children," Shadowhunters season 3 episode 15 will feature some of the members of the team breaking the rules.

According to the episode synopsisthe rule breakers will be prompted to by love, loyalty, and revenge. But as they question the limitations imposed on them, they will also learn the face the consequences of their failure to stick to the rules.

First on the list of rule breakers is Magnus Bane (played by Harry Shum, Jr.). As the teaser of Shadowhunters season 3 episode 15 reveals, Magnus will be discussing his new situation with his boyfriend, Alec (played by Matthew Daddario), but they will both brush it off.

Magnus, who traded his powers to become a Downworlder, isn't supposed to be living in the Institute with a Shadowhunter and yet he has comfortably moved in with Alec. The latter, however, convinces Magnus that he's done nothing wrong since that "rule" was more likely a suggestion than for strict compliance. 

It is Magnus who has to contend with the judging eyes as he walks around the Institute. Everyone seems to let him know he doesn't belong there anymore. 

Meanwhile, according to TV Fanatic, Clary (played by Katherine McNamara) will be forced to confront her dark side in Shadowhunters season 3 episode 15. After learning what happened to Luke (played by Isaiah Mustafa), Clary feels compelled to do something and save him despite her advice to the latter that he shouldn't carry the burden. 

Clary tries to break out of her comfort zone and sheds her gentle persona. It's going to be a difficult path for her as she tries to unleash her dark side to get Luke the help he deserves. Thankfully, Clary has Jace (played by Dominic Sherwood) to support her all the way. 

But another preview for Shadowhunters season 3 episode 15 shows Clary struggling between her dark side and her sweet and compassionate side as she faces off with Aline (played by Jacky Lai). The latter wants to know why Clary had to let her twin Jonathan (played by Luke Baines) go unharmed, and it's also something Clary is struggling to reconcile with.

Meanwhile, Shadowhunters season 3 will keep airing new episodes until its series finale run by the end of April. Despite the billboard campaigns and the petition earning more than 170,000 signatures to save the show, Freeform has not yet overturned its initial decision to cancel Shadowhunters after the third season.