As modern-day explorers race to send humans to Mars, the latest discoveries uncover the dangerous secrets of the Red Planet. This episode is a mashup of two other Science Channel shows: "Mars; The Secret Science", S01E01, "Race to the Red Planet" and "How the Universe Works", S05E6, "Life & Death on the Red Planet."

New discoveries reveal the secret dangers lurking in the cosmos. This episode is a mashup of "Space's Deepest Secrets," S03E02, "When Meteors Attack" and "How the Universe Works," S05E05, "The Universe's Deadliest".