Tom, greeting-card writer and hopeless romantic, is caught completely off-guard when his girlfriend, Summer, suddenly dumps him. He reflects on their 500 days together to try to figure out where their love affair went sour, and in doing so, Tom rediscovers his true passions in life.
Widowed U.S. president Andrew Shepherd, one of the world's most powerful men, can have anything he wants -- and what he covets most is Sydney Ellen Wade, a Washington lobbyist. But Shepherd's attempts at courting her spark wild rumors and decimate his approval ratings.