Steve Kabba scored all four goals - including a 13-minute hat-trick - against his former club as Barnet's survival hopes were kept alive in a 4-1 win at Burton.
The veteran striker's goals all came in the second half after Burton had taken an early lead.
The home team went ahead in the 11th minute when the ball broke loose for Sam Winnall to drill home a low shot from 15 yards.
Barnet twice went close to the equaliser in a dominant spell midway through the first half.
Home skipper John McGrath almost saw a clearance rebound off him into his own net in the 23rd minute and Adam Legzdins had to produce a one-handed save to keep out Izale McLeod's header.
McLeod was denied by the crossbar before Barnet snatched a deserved equaliser in the 53rd minute as Kabba pounced on a long clearance to fire through the legs of Legzdins.
The striker, who had a spell on loan at Burton from Brentford last season, struck again with brilliant lob in the 64th minute.
And Kabba completed his hat-trick from the penalty spot three minutes later after Sam Deering had been tripped by Scott Malone.
Kabba made it 4-1 10 minutes from the end when he bundled in a Mark Marshall cross at the near post.
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