They lasted longer than most expected, forcing a six-game series, but the 67's eventually bowed out and did it by way of a blowout loss on Sunday.
Michael McLeod, who the 67's wanted a slew-footing penalty on in game four, went superhuman for two periods, picking up two goals and three assists in a 23-minute span.
"They're all great players, they're all threats, it really isn't easy", said Noel Hoefenmayer, arguably the 67's best player in the series, after being heavily leaned on to contain Mississauga's deadly top unit.
Leo Lazarev officially faced 98 shots over 120 minutes of play to finish the series, though the 67's video staff and coaching staff projected Friday's miracle performance at closer to 60 shots, according to Brown.
By the time the game reached a 5-0 deficit, the 67's began throwing out their young guys more and more, which perhaps makes it fitting that Carter Robertson broke the shutout, albeit a fluke goal.
"I'd have to do some research, but I can't imagine a junior hockey team ever icing three 16-year olds and two 17-year olds on defence," added Jeff Brown.
"We knew it was going to be a challenge when we took all those young guys in at the beginning of the year, but an incredible experience that they've had will only help them.
Brown, who was serving the second game of his suspension, now looks forward to the OHL Selection draft next Saturday, set up with a plethora of young talent but with the need to piece together the next wave that creates OHL powerhouses.
The Barberpoles graduate overaged Chris Martenet, Jareg Steege and Pat White, while Brown says he'll "have to figure out what's going on" with Leo Lazarev and Artur Tyanulin, who are bound to be pursued by the KHL.