Jacobi reflects on his relationship with Colonel Kepler.

When the Urania's radio picks up and loses the first deep space signal in months, Colonel Kepler puts everyone on high alert. Split into two teams and forced to stay up on an all-night stakeout, the crew must find ways to keep busy and face unique challenges. On the Urania, Eiffel, Jacobi, and Kepler contemplate their place in the universe. Meanwhile, on the Hephaestus, Minkowski, Hera, Lovelace, and Maxwell confront a threat unlike any they've ever encountered. Plus, the wheel of ages, kitchen sinks, nuclear winter rounds, teenage love lives, and Funzo.

Seeking to prevent another unforeseen Decima outbreak, Eiffel and Hilbert run tests to determine the status of the virus inside the Communication Officer's body. The two men are forced to deal with an unexpected complication, however, when Colonel Kepler decides he wants to sit in on the proceedings. And when Captain Lovelace tries to break into the SI-5's private archive, she receives help from an unexpected source. Plus, brute force, the Medical Mystery Tour, Personal Moron Taxes, wacky misunderstandings, and the farthest point past the bottom of any food chain.

As the SI-5 tightens its grip on the Hephaestus, Colonel Kepler decides to run a comprehensive job review. Each faced with unique challenges, Eiffel, Minkowski, Lovelace, and Hilbert all struggle to prove their worth, preserve their autonomy, and stay ahead of the new management. Plus, mind-numbing drudgery, the Twilight Zone, Kung-Fu Chess, Geppetto, and very official clipboards.

An important message prompts additional resources to be uncovered for the Hephaestus Mission.

Sécurité. (noun) An international radio signal, used to convey messages concerning safety of navigation or important warning. Plus, sensitive information, sun tanning opportunities, surreal nightmares, bunny slippers, and the end of the known universe.

Mayday. (noun) An international radio distress signal, used to signify a state of emergency on board a craft. Plus, complete operational breakdown, better ways to fly, mathematical realities, an idle mind, and the big blue wrecking ball.

Pan-Pan. (noun) An international radio distress signal, used to signify a state of urgency on board a craft. Plus, very simple instructions, Space Yukon, adventures in grease monkeying, Disney table manners, and killing everything and everyone.