Constantine Extended Preview For Angels And Ministers Of Grace

NBC has released a new, extended preview for next week's episode of Constantine, titled "Angels and Ministers of Grace."

The preview video, titled "Hospital Horror," goes behind the scenes of the episode set to air Friday at 8 p.m. ET/PT.

You can it them out, along with the episode's official synopsis, below.

AN ANCIENT EVIL RESURFACES IN A HOSPITAL – When John (Matt Ryan) heads to a local hospital to investigate a mysterious attack, he enlists an unwitting Manny (Harold Perrineau) to help him. Meanwhile, a health scare causes Zed (Angélica Celaya) to question the source of her visions. Charles Halford also stars.