When Calls The Heart is celebrating a major milestone!

The hit Hallmark Channel series is airing its 100th episode tonight, Sunday, August 6!

“It’s just a huge event in Hope Valley,” Erin Krakow dished to TV Insider about the fete. “It is a celebration of our community, and we get to see everyone enjoying a special new feature in Hope Valley.”

She teased more, saying that while the episode is no. 100, “it won’t feel like a departure from our story and it won’t feel like a departure from the way we typically tell stories. We didn’t want to divert at all from the stories that we were telling this season. So it will very much feel like a cohesive part of the rest of this season.”

In the episode, Erin’s Elizabeth reunites with her Aunt Agatha (Karin Konoval) and sister Julie (Charlotte Hegele) who come to town to visit and meet her fiance, Lucas Bouchard (Chris McNally).

Meanwhile, many of the town’s residents make a day trip to the newly discovered Hot Springs.

When Calls The Heart airs Sundays at 9 p.m. on Hallmark Channel.