In 'Late Arrival from Avalon,' Babylon 5 faces challenges on multiple fronts after declaring independence. Marcus and Franklin stumble upon a man claiming to be King Arthur, leading to a moral dilemma about how to handle his potential delusion, especially when a major secret is revealed. Sheridan and Ivanova scramble to secure funding for the newly independent station. Meanwhile, Garibaldi's attempt to retrieve a package from Earth is complicated when the price suddenly skyrockets. Adding another layer to Arthur's story, the Minbari also play a role in his mysterious reappearance.