Prepare to "Dive to the Bottom of the World" (2009) with this Discovery Channel spotlight on the Nereus, the deepest-diving sea vehicle in operation, as it plumbs depths untold on the ocean floor. Next, human genome mapper J. Craig Venter embarked on a voyage to study the genetics of marine life, and his striking findings are explored in "Cracking the Ocean Code" (2005). Lastly, the travels of a mother Humpback whale and her calf are carefully and captivatingly chronicled in "Ocean Voyagers" (2007). 129 min. total. Standard; Soundtrack: English Dolby Digital stereo.