LOS ANGELES (thefutoncritic.com) -- Sci Fi has booked "Knights of Bloodsteel," its latest mini-series event, for Sunday, April 19 and Monday, April 20 at 9:00/8:00c, network sources have confirmed to the site.

The four-hour project, previously known as both "Mirabilis" and "Dragons of Black Roc," stars David James Elliott, Natassia Malthe and Christopher Lloyd. It marks the cable channel's first mini-series since 2007's Emmy-winning "Tin Man."

Here's the network's official description:

"Once a paradise fueled by the all-powerful sorcery-grade metal known as bloodsteel, the distant land of Mirabilis begins to decay as supplies of the supernatural substance dwindle. The evil warlord Dragon Eye fights to gain control of the world's supply of bloodsteel, which he will use to rule Mirabilis. But, an ancient prophecy propels four ordinary citizens to battle Dragon Eye. Their quest is to find the fabled Crucible - source of all bloodsteel - before the corrupt forces of darkness destroy their world."

Other originals rolling out that month include (all at 9:00/8:00c): "Thor: Hammer of the Gods" (Saturday, April 11), "Carny" (Saturday, April 25) and "100 Feet" (Sunday, April 26) as well as the previously announced network premiere of "Stargate: Continuum" (Friday, April 3).