They are the product of a 1990 merger of two former Metro Junior B franchises, the Thornhill Thunderbirds and the Markham Connection.

As a member of the Metro Junior A Hockey League they participated for 3 seasons.

They have had a glim past few years, but in the 2007–08 season they saw a rare light when team captain Bruce Crawford lead the entire OPJHL in scoring (41-57-98).

In 1989 they were renamed the Markham Connection after the Travelways bus sponsor was sold.

Before the Chargers, the Mississauga Torspos played in the Metro Junior B league from 1985 until 1988.