How old do you need to be to understand true love? Lana and Lex are convinced that what they feel for each other is deeper than friendship. When his hard-hearted mother tells him they're moving, the first thing he does is find Lana and propose. Of course, at only eleven years old, the best he can offer is a pretend wedding. Two children decide to make a vow-one takes it seriously. When they rediscover each other fifteen years later, Lex is engaged. Although Lana is still deeply in love with him, she feels it would be wrong to come between him and his wealthy fiancee. The only problem is that her handsome best friend and co-worker, Mack, decides to lay down a challenge for Lex to see exactly how strong the tie is that united two childhood sweethearts long ago when they said, "I do.""