Nick and Gina
Cliff and Cydney decided that they would continue because the murders took place in a completely different island, but soon start getting suspicious after Nick meets up with his girlfriend Gina(Sanchez)
which he failed to mention that he was traveling with.
kale and Cleo
After the two couples meet, a angry Kale(Hemsworth)
show up, which Cliff had earlier turned down for a ride. Cliff suspects that Kale and Cleo are following them and they start suspecting them of the murders.
After traveling for hours Nick and Cliff go into the woods to hunt for food while Cydney and Gina stay back in the tents. Cydney talks about her childhood and about a boy she dated named Rocky, who everybody believed was an upstanding gentleman, whom she later discovered to not be who she thought she was and lead to Cyndey never telling another soul about what happend until now.
Kale being arrested
After that night both couples start suspecting of each other but the the next day, they see Kale and Cleo being arrested by the police. A container full of pulled teeth is found in their bag.
Cliff, Cydney, Nick and Gina continue their journey to the beach, where Nick and Cliff decide to go see a marine cave via kayaks. As Gina looks through the photos of Cydney and Cliff's wedding, she is horrified to realize that they are not who they say they are.