Watch Harper's Island Online - Full Episodes

In the 2 hour season finale, eight out of the original 25 suspects strive to be one of the few survivors as all answers are revealed.

In the 2 hour season finale, eight out of the original 25 suspects strive to be one of the few survivors as all answers are revealed.

Abby confronts the killer, but the guests start thinking he may have an accomplice. Another guest dies and another goes missing.

An explosion destroys the marina, forcing the group to retreat to safety and a secret is revealed leaving everyone terrified.

As night falls and the Island goes dark, the Killer's motives begin to come to light, as the survivors realize they must find Madison and the Killer, before more people die.

As the guests get ready to leave the island, one guest mysteriously disappears. Abby receives a phone call from someone threatening to kill the missing guest if anyone leaves the island.

The wedding guests begin preparing to leave the island but the Sheriff suspects that one of them is the killer. Some new information reveals an eerie connection between Abby and Wakefield.

After the deadly events at the rehearsal and with the wedding so close, Abby, Henry and J.D. try and solve the murder by themselves.

Some interesting facts are unveiled during a bike ride between a father and his daughter. Trish and Henry have an eventful wedding rehearsal.

Henry and his groomsmen make a bloody discovery while out fishing. Meanwhile, as Trish and her bridesmaids visit a psychic, Abby is the one she is strongly drawn towards.

When a local girl commits suicide, Abby insists that her father look into what happened. As the wedding nears, Trish must make her decision about Hunter.

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.

The guests board a yacht and head to the island. Before they can even depart the boat, one person will be found murdered, which no one had seen. Later, the bride's ex-boyfriend shows up uninvited and another person is found dead.