KK Buducnost destroyed Galatasaray Café Crown 93-62 on Tuesday to advance to the EuroCup.
The Montenegrins, 85-83 winners in the first leg of the Qualifying Round 2 tie, trailed 19-15 by the end of the first quarter in the second leg but then blew the game wide open.
They outscored Turkish outfit Galatasaray 33-12 in the second quarter for a 48-31 lead and had command of the game the rest of the way.
Despite having a pair of seasoned Serbian veterans in Dejan Milojevic and Milan Gurovic, Gala couldn't get the job done in the Balkans.
Vladimir Micov scored 17 points to lead Buducnost while Andrija Zizic finished with a game-high 18 in defeat.
Milojevic contributed 14 points and 14 rebounds but Gurovic, the captain of Serbia's EuroBasket 2007 squad, scored just two.
The emerging Montenegro international Vladimir Dasic poured in 16 points, including makes on his two three-pointers, for Buducnost who shot a sizzling 11 of 22 from long range.
Galatasaray were a mere four of 23 from behind the arc.