With a specialized crane system and five propellers to counter heavy seas, North Sea Giant can perform powerful and precise lifts in seas as high as 4.5 metres – four times the capability of other such vessels. On this voyage, she’s out to lift and install the final massive module of the world’s first subsea gas compression station nearly 300 metres underwater. But when strong winds and currents threaten the delicate operation, her team of underwater robots must come to the rescue before the module crashes the entire project!