The Thunderbolts have made it two from two to start the 2017 season.
The young side outlasted the Warriors and torrential conditions to leave New Zealand with a 20-12 win.
Eric Smith's side burst out of the blocks with two tries in the opening seven minutes.
That 10-point bugger in such wet weather proved to be the difference maker as the Warriors simply could not bridge the gap.
Leading 16-6 at half-time, the Thunderbolts were forced to defend for much of the second half but did so courageously.
Their tireless work paid off on 57 minutes when Harlan Collins finished off a brilliant left-side, team play to score in the corner.
That proved to be the icing on the cake as the Thunderbolts remain unbeaten on the back of outstanding defence.