Normally the most potent batting lineup in the competition, CD's batsmen had lost all of their timing, hitting just five boundaries in their innings as shots rolled limply to the fielders manning the inner circle.
George Worker (37 from 33 balls) tried his best to rebuild the innings, but just as CD showed some promise, ND pulled the ace from their sleeve.
Into the attack came the world's top-ranked Twenty20 bowler, Ish Sodhi, and he had the opposition in knots. Ball after ball went past the outside edge, before he got Dane Cleaver to edge behind to end the only promising partnership of the innings.
Further wickets tumbled as Sodhi finished with 2-15 from his four overs, working in tandem with Anton Devcich, who claimed 3-16.
Worker was the last hope, but a spectacular one-handed grab at extra cover by Dean Brownlie saw his demise, as CD limped to a meek total, which was never going to trouble the hosts.
In fact, ND were so unbothered that they stormed through their runchase.
Tim Seifert got things started with 23 from 12 balls, before Brownlie took over, smacking five fours in an over off Blair Tickner's bowling.
Remarkably, the next over Devcich went one better, smoking six consecutive fours off spinner Ajaz Patel, and the veteran fittingly had the final say, hitting one final boundary to bring up his 50, and seal a stunning victory.