The Centauri are about to withdraw from a quadrant of space because the Narn are harassing them, when Londo gets an offer to take care of the problem. Meanwhile, Garibaldi tries to find out what his informant stumbled upon that got him killed.

Sheridan's sister comes to visit him at his new command, G'Kar returns with grave tidings from the rim of known space, Dr. Franklin tries to wake Gribaldi from the coma with the alien healing device obtained from Dr. Rosen, and something is happening in Delenn's quarters.

A 100-year-old space exploration ship appears near Babylon 5 with two passengers - a woman in cryogenic sleep, the corpse of her husband, and something sinister that has unfinished business with a half mad lurker.

A mysterious man comes to Babylon 5 dressed in chainmail and armed with a sword. His name? King Arthur - Son of Uther Pendragon, come to help when he is needed most.