Caitlin and Oscar used to be mates, but not anymore. These days Caitlin texts boys to meet her in public parks while Oscar eats his lunch in the teachers' staff room. Today is different though. The unlikely pair share a haunting memory, so they make a pact to run. To completely disappear. Go full-on missing. Winner of the Rodney Seaborn Playwrights Award, shortlisted for the Patrick White Playwrights Award, and developed with Playwriting Australia at the National Script Workshop and the National Play Festival, Hell's Canyon is story of friendship, grief, and teenage rebellion, written by one of Australia's most exciting new playwrights, Emily Sheehan.