WHEN CALLS THE HEART Preview: Jack Wagner Debuts as Royal Canadian Mountie Jack Thornton

Lori Loughlin and Jack Wagner.  Photo Credit: Copyright 2013 Crown Media
United States, LLC/Photographer: Eike Schroter

The first season of Hallmark Channel's WHEN CALLS THE HEART continues with a new episode ("Rules of Engagement") on Saturday, March 22 at 9 p.m. ET/PT.  Jack Wagner makes his first appearance as Royal Canadian Mountie Jack Thornton.

Jack (Daniel Lissing) gets an unexpected visitor from his past who puts his relationship with Elizabeth (Erin Krakow) in jeopardy, while Abigail (Lori Loughlin) starts working with a charming new mountie (Wagner) on the mine investigation.

Watch a sneak peek video below: