The Terriers led 1-0 after 20-minutes of play thanks to a Maddux Nollski at 9:13.
The Millionaires knotted the score with the only goal of the middle stanza; Nicolas Samson scoring at 2:19.
The third went to the Terriers with an unassisted marker by Logan Cya at 8:19 and an empty-netter by Tyson Janzen at 19:43.
Kael DePape was in the Terrier net facing 25-shots for the win, while Jared Thompson took the loss facing 32-shots in the Melville net.