Herra holds the key to Earth's salvation or its annihilation.
The crew of Dauntless dives deeper into the mystery of the new alien race, discover answers to some of their questions, to only to discover new questions.
Herra must make the ultimate choice as she races against the clock uncover the ultimate weapon to save them all.
Lawson has two alternatives. Follow his orders, or following his intuition, while not letting his feelings for Herra cloud his judgement or endanger his crew.
Kohora faces opposition within his own council to rally the Ishalans together to make a stand with Earth.
For if they don't all work together, all will be wiped out.