As Babylon 5 recovers from the propaganda war started on ISN, Sheridan sends Marcus and Dr. Franklin to Mars. Along the journey, they annoy each other, including Marcus singing "The Major-General's Song" to Dr. Franklin's discontent.
Members of Delenn's clan decide that Delenn should return home to Minbar and justify her deepening relationship with John Sheridan. Delenn makes a discovery about her ancestry once she arrives on Minbar.
G'Kar gets his artificial eye implanted and learns that it can function and send images back to him even when he removes it. Very useful information for a Narn with a strange sense of humor
It is learned that Delenn, after humans inadvertently killed the Minbari leader Dukhat due to a misunderstood gesture, had effectively ordered declaration of war on humanity by casting a deciding Grey Council vote, during a moment of personal shock and anguish following Dukhat's death.
It is learned that Delenn is a descendant of Valen, and one of many Minbari to be a mixture of human and Minbari as a result. Because she never was pure Minbari, even before undergoing her metamorphosis by the Triluminary, her clan relents and allows Delenn to marry John Sheridan.
The TV film Babylon 5: Thirdspace may take place during this episode (to the extent that the film's continuity problems can be resolved).