The fourth and final season of 'The Umbrella Academy' has concluded, wrapping up the popular Netflix series with notable events and character arcs. Robert Sheehan, who plays Klaus Hargreeves, described his emotionally and physically taxing final day on set, which involved being buried alive for 14 hours. The season features memorable moments, including a dance scene to Cher's 'Gypsies, Tramps and Thieves' performed by Nick Offerman and Megan Mullally as new villains. The plot centers on the Hargreeves siblings reuniting to rescue a mysterious woman and ultimately sacrificing themselves to create a single, peaceful timeline. The fate and backstory of Ben Hargreeves remain partly mysterious, with hints that his death might be explained in this final season. The series also pays homage to its beginnings with a musical throwback to 'I Think We're Alone Now' during the final episode.