Patlabor OVA

The 450 Million-Year-Old Trap (1x3)

:

A series of incidents occur in Tokyo Bay including a damaged undersea cable, and a car being pulled off a pier. Could this be the work of an actual sea monster? Detective Matsui of the Metropolitan Tokyo Police Department asks Captain Gotoh for help. Shige and Sakaki help pilot a remote control Labor, to search for what caused the incidents.