Invasion
The flying Bio-Raptor Gui Zoids, led by Bio-Ptera, attack Zuuri City. They drop bombs and severely damage the buildings, then quickly retreat. Amongst the citizens, Mii discovers an injured boy who has lost hims memories. Kotona recognizes him as Souta, pilot of the recently destroyed Bio-Kentro. Part of Souta's memory is recovered after he sees Murasame Liger, and he activates Deadly Kong to battle Murasame, but Ruuji subdues him and knocks him out.
Aired 18/12/2005EP 37 - Invasion
Zoids Genesis
Natural disasters have devastated planet Zi, killing off almost all life. A thousand years later humans have gradually re-established civilization, salvaging ancient Zoids through diving and mining efforts. In a village whose most previous item is a giant sword which they worship as a holy symbol. A teenage boy discovers an ancient Liger-type Zoid while on a deep water salvage operation. Suddenly the village is attacked by skeletal Bio-Zoids intent on stealing a powerful generator located in the village. Our teenage hero awakens the Liger and discovers that the towns sacred sword is the Ligers weapon, together they fight off the mysterious Bio-Zoids. At least for now...
(Source: AniDB)