Strange signals start coming from Epsilon 3, the planet below Babylon 5. A science ship is sent to investigate, but is fired upon by a defense system on the planet. Meanwhile, Garibaldi worries about a lover he left back on Mars, when fighting breaks out there.

Bester returns to Babylon 5 to shut down an underground organization that smuggles rogue telepaths out of the PSI Corps' reach. Meanwhile, Sheridan has some disagreements with Earth Force over the rent of his quarters.

G'Kar struggles to control the Narns on Babylon 5 as he asks the different ambassadors for help in the war against the Centauri. Ivanova shows a representative from a new species around the station, so he may decide if humans are worthy of their presence.

Marcus starts snooping around Downbelow when some of his contacts start behaving unusually and a lurker is found dead with a strange creature bonded to his spine. Ivanova investigates Corwin's loyalties when he receives a promotion.