Growing up in Greenville, Texas, Bart Millard suffers physical and emotional abuse at the hands of his father, Arthur. When Arthur becomes terminally ill, he finds redemption by embracing his faith and rediscovering his love for his son. Years later, Bart's troubled childhood and mended relationship with his dad inspires him to write the hit song "I Can Only Imagine" as singer of the Christian band MercyMe.

A young nurse downloads an app that tells her she only has three days to live. With time ticking away and a mysterious figure haunting her, she must find a way to save her life before time runs out.