The last thing Elder Fisher expects when he and his brand-new companion, Elder Johnson, hit the city streets is a couple of seemingly golden prospects. But dimwitted brothers Roger and Larry, low-level Mafioso, think the two Mormon missionaries who approach them have been sent by the "Boss" to deliver their next assignment. So the brothers are willing to listen to anything the young men in dark suits have to say—including a message of salvation—even if Elder Johnson is the most overconfident and underprepared missionary to ever attempt to preach the word of God. Soon the witless brothers are searching through the Book of Mormon in a quest to find a hidden message. But as the missionaries and Roger and Larry continue to meet for discussions, both the mafia and the FBI have their sights set on Elders Fisher and Johnson. Now the mismatched elders must learn to rely on each other to survive their likely lethal case of mistaken identity. A hilarious action-packed movie the whole family will enjoy.