Trailing 38-10 in the third quarter, the AFC South champions climbed off the ropes led by Luck, who threw for three touchdowns and ran for another to end the Chiefs' Cinderella season and send the Colts through to the division championships.
The Chiefs, a league worst 2-14 a year ago had looked poised to claim their playoff win in 20 years until Luck, the former-number one overall pick, went to work engineering one of the all-time NFL play-off comebacks. Only two other teams have ever rallied from 28-point deficits to get the win.
Luck had look more the goat than the hero after tossing three interceptions but recovered with three second half touchdown passes, including a 64-yard strike to T.Y. Hilton with just over four minutes to play to give the Colts their first lead of the day 45-44.