Trailing, 2-1, in the third period, the Wolves tied it up with a goal from defenseman Nathan Oystrick. Left wing Brett Sterling skated the puck into the zone before sending a centering pass to center Johnny Pohl, who cranked a point-blank shot at Toronto goaltender Joey MacDonald. The goaltender made the save but went down as he gave up the rebound and Oystrick came streaking in and pounded the puck back into the vacant net at 7:15 of the final frame.
Crabb completed the Wolves comeback at the 2:30 mark in overtime. Defenseman Arturs Kulda sent the puck up the ice to Pohl, who centered it for Crabb. Crabb fought through a group of Marlies to move in and rip a shot past MacDonald for the game-winner.
The victory marked the fourth straight for Chicago (20-16-0-2) on home ice and their fifth win in the last six games overall.
"They are a tough, physical team and it took us a while to get our wheels," said Wolves Head Coach Don Lever. "Once we got our legs under us we started taking it to them a bit."
Toronto (15-17-5-2) jumped out to a 1-0 lead just 38 seconds into the contest when a shot caught Wolves goaltender Drew MacIntyre off guard and left wing Stefano Giliati was able to hack the rebound into the net.
Chicago regrouped in the second period to even the score, 1-1, at the 3:25 mark with a goal from left wing Andrew Kozek. Kulda fired a long shot at MacDonald, which he kicked out into a scrum in front of the net. Kozek was the first one there and dove to knock it over the goal line.
The Marlies pulled ahead, 2-1, with an unassisted tally by left wing Ben Simon with 65 remaining in the second period. After carrying the puck into the corner and firing a shot, Simon snuck in a stole it back from the Wolves defenseman who collected it and fired it by MacIntyre.
MacIntyre (10-11-1) posted 18 saves for Chicago, while MacDonald (4-10-0) turned aside 28 shots for the Marlies.
The Wolves will play their first ever "School Day" Game against their Amtrak Rivals, the Milwaukee Admirals, at the Allstate Arena on Wednesday at 11 a.m.
Toronto 1 1 0 0 -- 2
Chicago 0 1 1 1 -- 3
First Period---1, Toronto, Giliati 2 (Foster, Frogren), 0:38. Penalties---Giliati, Toronto (delay of game), 7:16; Giliati, Toronto (tripping), 13:04.
Second Period---2, Chicago, Kozek 7 (Kulda, Welch), 3:25; 3, Toronto, Simon 1 (unassisted), 18:55. Penalties---Holzapfel, Chicago (hooking), 11:02; Rosehill, Toronto (fighting, misconduct), 17:02; Kaip, Chicago (instigating, fighting, misconduct), 17:02; Mikkelson, Toronto (roughing), 18:27.
Third Period---4, Chicago, Oystrick 4 (Pohl, Sterling), 7:15 pp. Penalties---Simon, Toronto (roughing), 0:29; Chelios, Chicago (slashing), 4:01; Foster, Toronto (hooking), 4:48; Oreskovic, Toronto (holding), 6:47; Sipotz, Chicago (slashing), 12:01.
Overtime---5, Chicago, Crabb 9 (Pohl, Kulda), 2:30. Penalties---None.
Shots on goal---Toronto: 6-8-6-0--20. Chicago: 5-15-9-2--31. Power plays---Toronto: 0-4. Chicago: 1-6. Goalies---Toronto, MacDonald (28-31). Chicago, MacIntyre (18-20). A---6,968. Referee---Francis Charron. Linesmen---Jesse Pletsch and Al Stensland.