Robert Walton was traveling to the Arctic, and Victor was following his monster, when the ice broke around Victor and he floated, then rowed himself towards Walton's ship.
He wants to create life (influenced by his mothers death) and takes parts from dead corpses. He completely cuts contact from his family and fiancee and makes this monster. When it comes to life, it...
Victor is able to accomplish his goals, and face his consequences, unlike Robert Walton who turns back from his journey to the North pole. Robert gives up.