Captain Santino Centorame had a goal and four points as the Attack smashed the Rangers 9-1 in their opener of the Western Conference quarterfinal.
Sean Durzi, Nick Suzuki, Ethan Szypula and Petrus Palmu all had three point games.
Owen Sound led 2-0 after one period of play and then exploded for five goals in the second period.
One of those goals was a power play marker just 11 seconds after the infraction, scored by Maksim Sushko.
Nick Suzuki also scored one shorthanded to make it 6-0 as the Attack went on to win it 9-1.
Owen Sound leads the best of seven series 1-0 with game two set for Saturday night in Owen Sound at 7:30 PM.