<Tr> <Td_colspan="7"> In 2009 Maine, Emma buys food at Chantley's Lobster House while seeking her birth family . A bondswoman named Cleo Fox is after Emma for skipping town in Phoenix . At a nearby courthouse, Emma & Cleo are waiting for records from Emma's discovery as a baby, but find little of use . A year later in Boston, Emma is now a bondswoman seeking Cleo's biological daughter, Tasha, on behalf of her unexpected fallen friend . In the Underworld, Hades, Zelena, her daughter, and the Storybrooke residents return home from the Underworld through a portal made by the fallen clock tower near the Underworld graveyard . The heroes all go through the portal except for Hook, who could not be saved in the end . With Hades' departure, Cruella announces herself as the new ruler of the Underworld . </Td> </Tr> <Tr> <Th> 109 </Th> <Td> 21 </Td> <Td> "Last Rites" </Td> <Td> Craig Powell </Td> <Td> Jerome Schwartz </Td> <Td> May 8, 2016 (2016 - 05 - 08) </Td> <Td> 3.75 </Td> </Tr> <Tr> <Td_colspan="7"> As everyone returns to Storybrooke, they have to stop Hades, who wants to unleash the Olympian Crystal on those whom he sees as a threat . When Zelena's feelings blind her to the truth, Emma, Regina, and Robin have to find a way to prove Hades' deception, leading to Robin sacrificing his life for Regina and Zelena using the Crystal to destroy Hades . In the Underworld, a deceased Arthur, killed by Hades in Storybrooke, is joined by Hook to find the missing element in killing Hades . After he succeeds in reaching Emma, Hook is allowed to move on, only to be rewarded by Zeus with a return to Storybrooke . Arthur stays in the Underworld as he was meant to repair a broken kingdom . Zelena names her daughter Robin in honor of her father during his funeral . Finally, after Moe refused to help bring Belle back from her sleeping curse and Hades chose not to make a deal, Gold takes advantage of the situation by acquiring a piece of the Crystal for a new plan . </Td> </Tr> <Tr> <Th> 110 </Th> <Td> 22 </Td> <Td> "Only You" </Td> <Td> Romeo Tirone </Td> <Td> David H. Goodman & Andrew Chambliss </Td> <Td> May 15, 2016 (2016 - 05 - 15) </Td> <Td> 4.07 </Td> </Tr>

Who dies in season 5 once upon a time