The fictitious South American republic of Costaguana is in the midst of a civil war and the citizens of the coastal town of Sulaco turn to Nostromo for help.

A scientific expedition stumbles upon the remnants of Atlantis.

Literary critic Humphrey Van Weyden is pressed into service aboard a seal-hunting schooner by its cruel, ruthless, but intelligent captain.

A mysterious captain assembles a ship and crew for a secret and dangerous voyage.

A record of the ill-fated voyage of the Chancellor as told by one of the passengers.