Here is a third sneak peek for Shadowhunters Season 3 Episode 5 "Stronger Than Heaven", airing next week on Freeform. 

In the episode: Someone is out to get Simon and Jace is on the hunt to find out who it is, meanwhile Clary turns to Luke to find a way to help Jace. 

Head over to Shadowhunters Episode Guide: "Stronger Than Heaven" for the full description, promo and photos of this episode.