The best episode written by John Callaghan is "I See a Darkness", rated 8.6/10 from 7 user votes. It was "directed by Ron Murphy". "I See a Darkness" aired on 8/11/2017 and is rated 0.2 point(s) higher than their second highest rated, "Let's Pretend We're Strangers".
The team may not be able to save one of their own after a deadly run-in with the widows.
Director: Ron Murphy
Writer: John Callaghan
A furious thunder-snowstorm makes landfall while Wynonna and Waverly are forced to confront their demons - and each other.
Director: April Mullen
Writer: John Callaghan
After a young, healthy and hunky fireman dies suddenly at Hope Zion Hospital, Alex must take the stand at Hope Zion’s Morbidity and Mortality (M&M) Rounds to find out what went wrong and who is to blame. Meanwhile, Charlie deals with a nervous aspiring Nun, and Joel has to decide if he can be the man that comes through for Sonja.
Director: Jeff Woolnough
Writer: John Callaghan
Sarah finds herself in the middle of a hostage situation at a medical testing lab. When the team realizes there's no way inside without aggravating the gunman, Charlies sends Rex in to monitor the situation.
Director: John Vatcher
Writer: John Callaghan
The animal lovers of St John's are under suspicion as Charlie and Rex investigate the death of a professional pet sitter. At home, Charlie finds himself in need of Sarah's help.
Director: N/A
Writer: John Callaghan