Onboard ship computer, Hetfield has been tasked with overseeing his crew's safe voyage to Jupiter's fourth moon, Callisto. As the tension of long space travel mounts among the crew, Hetfield recognizes a need to foster closer relationships and discover the essence of humanity. As cabin fever worsens and the crew's better judgment is affected, Hetfield must put into practice what he has learned about being human. However, when Hetfield's newfound human frailty is discovered by the crew, he qualifies as a performer in the circus of paranoia, mistrust and conspiracy.
