Growing up in post-World War II era Arizona, young Sammy Fabelman aspires to become a filmmaker as he reaches adolescence, but soon discovers a shattering family secret and explores how the power of films can help him see the truth.

After his wife Katie lands a once-in-a-lifetime deal on Shark Tank that takes her on a prolonged business trip - lifelong breadwinner Nate Wilcox now has to fend for his family as a first-time stay-at-home dad.