What if Jack and Elsa switched lifes? When the guardians are sent to do business in Arendelle Jack finds himself making a new enemy whos none other than Queen Elsa. With Pitch back the moon picks Elsa as a new guardian to work with Jack to defeat the dark. But with Jack and Elsa fighting each other there is a problem. To resolve this problem the moon sends each of them back in time to relive one anothers life to see what its like in each others shoes. Could this plan work? Could it change there opinions on one another? But most importantly can they learn to work together to defeat the true enemy?