FUNimation Entertainment has announced that the Hellsing Ultimate original video anime will start airing on Adult Swim’s Toonami block on September 13, 2014 at at 3:00 a.m. EDT/PDT.

The story is described as:

The rogue vampire Alucard is the Hellsing Organization’s deadliest instrument in its mission to protect the British Empire from satanic ghouls and Nazi freaks. He is not alone in his assault on the occult; the master has a servant. Policewoman Seras Victoria accepted Alucard’s gift of dark salvation after falling in the line of duty, and now the remnants of her human soul struggle against her growing vampire urges. Together, they haunt the shadows as a sinister force of good – and tonight the foggy streets of England shall flow with the blood of their evil prey.

Hellsing Ultimate is taking over Black Lagoon‘s time slot.

Source: ANN