Flask was apart of the notorious Ohnaka Gang, led by Hondo Ohnaka. Count Dooku was captured by the gang, and was going to be sold for a ransom to the Galactic Republic. Jedi Generals Anakin Skywalker and Obi-Wan Kenobi came to acquire the Count, but Ohnaka captured them to triple the ransom.
On one of the occasions that the prisoners tried to escape, Flask led the group of pirates to prevent the prisoners from escaping. When they almost got over the wall, Flask used his sniping skills to stop them from trying to get over. He told his group to cease fire while Ohnaka came and accessed the situation.