It played in the Greater Metro Junior A Hockey League (GMHL).

The Attack was announced as an expansion team on March 19, 2012, by the GMHL.

[1] On September 15, 2012, it played its first game, in Thornhill, Ontario, against the Toronto Canada Moose, where it picked up its first victory 10–2.

Andrew Magee scored the first goal in team history 4:09 into the first period.

This Ontario ice hockey team-related article is a stub.