S2, EP6 "The Shake Up"
Lukrum pushes its corporate interest too far and jeopardizes the safety of both colonies; IMSF springs into action to stabilize the situation, but, for some, it will be too late; on Earth, human activity destabilizes the natural world.
S2, EP5 "Power Play"
Lukrum strikes a deal with Russia for exclusive mining rights; Lt. Cmdr. Mike Glenn undermines Hana and endangers colony members; the first-generation Martian baby arrives two months early; on Earth, nations attempt to rein in corporate interests.
S2, EP4 "Contagion"
A mysterious illness sweeps through the colonies; when IMSF realizes one of their own has died as a result, they race to find its cause before more lives are taken; on Earth, an activist sheds light on a health crisis being kept quiet.
S2, EP3 "Darkness Falls"
When a solar flare strikes the planet and knocks out communications between and within the colonies, the Olympus Town team races against the clock to locate Marta, who becomes stranded on the surface during a rogue research expedition.
S2, EP2 "Worlds Apart"
The tenuous coexistence between the two Mars colonies threatens to dissolve; Greenpeace activists take to the seas to protest Arctic oil drilling; relations between IMSF and Lukrum, now sharing a common water and power source, face rising tensions.
S2, EP1 "We Are Not Alone"
After almost a decade alone on Mars, scientists at IMSF's now fully developed Olympus Town settlement prepare for the arrival of a group of highly skilled astronauts working for a for-profit corporation specializing in natural-resource extraction.