Hondo Ohnaka's secret ship vault served as a storage location for extra starships, which the pirate captain Hondo Ohnaka kept in case they were ever needed. The hangar's location was known only to him.
In the year 20 BBY, General Grievous, a cyborg, arrived on Florrum under orders from Count Dooku. His mission was to finally exact revenge on Ohnaka for capturing him and demanding ransom. Ohnaka found himself imprisoned but was rescued by a group comprising Jedi Initiates, Ahsoka Tano, Professor Huyang, R2-D2, Gwarm, and another pirate. Their only way to escape Grievous and the Separatist Droid Army was using one of Ohnaka's hidden vessels. Together, Ohnaka, the Jedi, and his crew raced to the hangar and fled the planet aboard the Slave I.
During his time as the leader of the Ohnaka Gang, Ohnaka stored various ships in the vault, including not only the Slave I, but also vessels such as the Fortune and Glory, a HCT-2001 Dragonboat-class Freighter, another Luxury 3000 Yacht, a YV-666, four WLO-5 tanks, and six HH-87 Starhoppers, and possibly even more.