The tenuous coexistence between the two Mars colonies threatens to dissolve. Relations between IMSF and Lukrum, now sharing a common water and power source, face rising tensions set off by a new discovery, Hana deals with a personal tragedy, and Amelie prepares to return to Earth. In present day, Greenpeace activists take to the seas to protest Arctic oil drilling in the Barents Sea and the effectiveness of such tactics are examined.
