
6.9
A group of family and friends travels to a secluded island for a destination wedding. They've come to laugh... to love... and, though they don't know it... to die. As the wedding festivities begin, friendships are tested and secrets exposed as a murderer claims victims, one by one, transforming the wedding week of fun and celebration into a terrifying struggle for survival.
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1Episode 1Whap
42 min
Abby Mills returns to Harper's Island for the wedding celebration of her best friend, Henry Dunn, and his fiancée, Trish Wellington. Abby hasn't been home in seven years, since her mother and five others were murdered by John Wakefield.
2Episode 2Crackle
42 min
As the wedding party embarks on a scavenger hunt, Trish confronts an old flame, Henry makes peace with some locals and Abby runs into a friend who is haunted by John Wakefield and the island's tragic past.
3Episode 3Ka-Blam
42 min
When a local girl's death is ruled a suicide, Abby challenges her father, the Sheriff, to investigate what really happened. As the wedding approaches, Trish must come to a decision about Hunter.
4Episode 4Bang
42 min
The groomsmen take Henry fishing for his bachelor party and make a gruesome discovery. The bridesmaids celebrate Trish's final days as a bachelorette with a psychic who has a very strong reaction to Abby.
5Episode 5Thwack
42 min
A father/daughter bike ride in the woods leads to a startling revelation. Abby uncovers the Sheriff's secret obsession as Trish and Henry's wedding rehearsal takes an unexpected turn.
6Episode 6Sploosh
42 min
With the wedding party reeling after the deadly events at the rehearsal, Abby, Henry and J.D. take matters into their own hands as they try and solve the murder.
7Episode 7Thrack, Splat, Sizzle
42 min
As the wedding guests prepare to leave the island, evidence leads the Sheriff to believe one of them is responsible for the deaths on the island. Also, Abby learns a dark secret linking her to Wakefield.
8Episode 8Gurgle
42 min
A guest disappears as the wedding party prepares to board the ship for home. A mysterious phone call informs Abby that if anyone leaves the island, the missing person will be killed.
9Episode 9Seep
42 min
The remaining members of the wedding party begin to turn on one another. Then, after finding maps of the island's underground tunnel system, they all join together to search for a Madison.
10Episode 10Snap
42 min
While attempting to get to a boat that will take everyone off the island, a massive explosion destroys the marina. The group retreats to a hideaway where a secret is revealed that leaves the group reeling.
11Episode 11Splash
42 min
After being rocked by more deaths and the disappearance of another friend, the group fights back and is more determined than ever to track down the island's killer.
12Episode 12Gasp
42 min
Eight out of the original 25 suspects strive to be one of the few survivors as all answers are revealed.
13Episode 13Sigh
42 min
The tragic plot's final twist traps Abby as the true extent of the killer's cunning is revealed.

Elaine Cassidy
Abby Mills

Christopher Gorham
Henry Dunn

Katie Cassidy
Trish Wellington

Cameron Richardson
Chloe Carter

Jim Beaver
Charlie Mills

C.J. Thomason
Jimmy Mance

Adam Campbell
Cal Vandeusen

Matt Barr
Christopher 'Sully' Sullivan
6.5