Hallmark Channel is continuing its lineup of Fall movies with the newest premiere, "Wedding of a Lifetime." The film, starring Jonathan Bennett and Brooke D'Orsay, debuts Saturday night.

The movie will be a major treat for fans, as it will let them reunite with two very familiar faces who have been Hallmark regulars throughout the years. While Bennett will forever live on in the hearts of "Mean Girls" fans for his role of Aaron Samuels in the hit 2005 film, he has become a familiar face on Hallmark over the years, with his most recent roles being in "Love at First Glance," "Christmas Made to Order," "The Christmas House" and "The Christmas House 2: Deck Those Halls."

Meanwhile, D'Orsay has long been a Hallmark Channel favorite, and her most recent roles have been in "Miss Christmas," "Christmas in Love," "Beverly Hills Wedding" and "A Dickens of a Holiday!" She also has starred in the Hallmark Movies & Mysteries films "Nostalgic Christmas" and "A Godwink Christmas: Second Chance, First Love."

So what can fans expect in this film? Let's find out.

"Darby (D'Orsay) and Jake (Bennett) are an engaged couple who have been together since their days as high school sweethearts in their close-knit mountain town," a synopsis for the film reads. "Over the years they have found themselves in a rut and out of love. As Darby and Jake prepare to break the news of their separation to their families, they inadvertently find themselves entered in a 'romantic relationship competition' hosted by a popular national daytime TV show after being nominated by the whole town."

To make things more awkward, the grand prize for the winning couple is an all-expenses-paid wedding, but despite not wanting to pretend, Darby and Jake decide the best thing to do is go through with the competition so they don't disappoint their loved ones.

"Though Darby and Jake are uncomfortable pretending they are still engaged, they decide to continue with the show," the synopsis continues. "Neither of them wants to disappoint their family and friends, and being on the show could potentially give both their careers a boost."

However, as they continue making it through the competition, the pair could learn that the only ones they have been fooling are themselves.

"Will the charade end with Darby and Jake coming clean and going their separate ways, or will the competition rekindle their romance?" the synopsis asks.

"Wedding of a Lifetime" airs Saturday, Sept. 17 at 8 p.m. EDT on Hallmark Channel.

Wedding of a Lifetime
Jonathan Bennett and Brooke D’Orsay star in “Wedding of a Lifetime.” Hallmark Media/Bettina Strauss