Joan of Arcadia - Season 2 Episode 16
Independence Day

Incensed that Will and Helen have forbidden her to go to a concert with Adam and stay overnight with him in his fathers camper, Joan goes anyway. After Joan has a conversation with God about free will, she decides to use it as a rationale for lying to her mother in order to go on the trip as shes convinced that Helen simply wants her to remain a dependent little girl. Meanwhile, Luke is shocked when the nerdy, girl-obsessed Friedman rebuffs the advances of the surprisingly infatuated Stevie.