The plot: On the eve of their senior prom, Julie (Kathryn Newton), Kayla (Geraldine Viswanathan) and Sam (Gideon Adlon) make a pact that they will each lose their virginity on the night of the prom. However, Julie's mother Lisa (Leslie Mann), Kayla's father Mitchell (John Cena) and Sam's father Hunter (Ike Barinholtz) discover the pact and set out to stop their daughters from making a terrible mistake. But as the night carries on, they start to question who is truly making the terrible mistake in this situation: Their children or themselves.