Not everyone is cut out for the NFL. This week's Gridiron Heights follows a rookie trying to survive "Planet Gridiron." Week 12's episode focuses on Los Angeles Rams quarterback Jared Goff, who must carefully navigate the starting role after spending weeks hibernating on the bench. How will he respond to an unpredictable environment with defenders lurking around every corner? Find out as Gridiron Heights' documentary crew explores football's vast terrains to examine how a youngster ranks on the food chain.