Fletcher Reede is a fast-talking attorney and habitual liar. When his son Max blows out the candles on his fifth birthday he has just one wish - that his dad will stop lying for 24 hours. When Max's wish comes true, Fletcher discovers that his mouth has suddenly become his biggest liability.
It's the 1970s and San Diego anchorman Ron Burgundy is the top dog in local TV, but that's all about to change when ambitious reporter Veronica Corningstone arrives as a new employee at his station.
In 1973, 15-year-old William Miller's unabashed love of music and aspiration to become a rock journalist lands him an assignment from Rolling Stone magazine to interview and tour with the up-and-coming band, Stillwater.
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.