MK Dons suffered a first League Two defeat since New Year's Day as Barnet came from behind to claim a 3-1 away win, ending the Bees' run of three games without a victory.
Jon Mellish gave the Dons an early lead, but goals from Danny Collinge, Kabongo Tshimanga and Idris Kanu turned the contest on its head and inflicted a fourth home league defeat of the season on the hosts.
Mellish Pounces on Slicker Spill
The home side opened the scoring after seven minutes when goalkeeper Cieran Slicker dropped Aaron Nemane's cross and Mellish tapped the ball into an empty net.