Seth and Liam belong to the same teenage friend group.
Both are members of the seven teenage friends traveling together toward a party.
Seth and Tiffany are an established teenage couple.
The plot explicitly identifies Tiffany as Seth's girlfriend while they travel together with their friends.
They cooperate while investigating the missing van.
Seth and Ava go together to check on the damaged van at Pa Rusk's garage.
They share the group relationship established before the crisis.
Seth and Nash are identified as members of the same group of seven teenage friends.
Candy initially assists Seth's traveling group through her towing work.
Candy, working as a tow truck driver, takes the stranded group and their vehicle to her father's garage.
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