Snow is the leader of Team Nora, a group of rebels fighting against the Sanctum. He grew up with his childhood friends Gadot and Lebreau in the town of Bodam at the edge of Cocoon, where they hunted stray monsters under the moniker of Team Nora. Falling in love with Serah Farron, Lightning's sister, Snow refused to leave her side after she became a l'Cie, offering her his hand in marriage. However, after Lightning sees him to be a delusional fool, Snow's peaceful life was interrupted by PSICOM occupying their town and taking away the people they believed to be contaminated by Pulse. This, and Serah's dissappearence, flared the resistance in Snow as he leads Team Nora in fighting back to rescue those being exiled.
But Snow's strength fails him during the mission: when he and a mother were hanging from the edge of a destroyed highway, her hand slipped from his and she fell off the cliff to her death after she made him promise to protect her child. He falls, too, but wakes up unharmed near the Lowerworld Vertigo, where Serah was. After regrouping to his team, unable to remember which child he is meant to look after, Snow departs to Lowerworld Vertigo where he encounters Lightning and Sazh Katzroy after learning that he was followed by Oerba Dia Vanille and Hope Estheim, the son of the mother Snow was unable to save. Finding Serah as she crystalized before his eyes, Snow reveals to Lightning that he and Serah were to be married, causing her to be unable to forgive him easily for her sister's status. Snow attempts to seek consul from the fal'Cie Anima to get his love back, offering to take her place before he joins Lighting in fighting the fal'Cie only to become l'Cie himself.
Finding himself on Lake Bilge, Snow accepts his Focus of saving the world, spurring Lightning to punch him as he vows to set things right between them and restore Serah. After taking control of the Shiva Sisters, Snow is captured by a PSICOM platoon led by Fang.
The final trailer depicts him being brought into custody by Fang after taming the Shiva Sisters, where he meets Cid Raines. Snow helps Lightning give Hope emotional support, and talks with her about the chance of ever seeing Serah (or each other) again in Pulse. He says that once he and Lightning end everything, they will go and see her.
