5x20 Emma & Hook #3

EMMA AND HOOK'S LOVE FACES THE ULTIMATE TEST ON ABC'S "ONCE UPON A TIME"

Greg Germann Guest Stars as Hades, Rya Kihlstedt as Cleo and Robbie Kay as Peter Pan

"Firebird" - Hades turns to the heroes to ask for help with getting Zelena back from Rumplestiltskin and Peter Pan. In return, he offers to take all their names off their tombstones. However, when Hook is still unable to leave, he and Emma must journey into the depths of the Underworld. Meanwhile, Cruella De Vil is determined to keep the heroes trapped in the Underworld. In flashbacks, Emma searches for answers about her family and makes an unexpected friendship on "Once Upon a Time," SUNDAY, MAY 1 (8:00-9:00 p.m. EDT), on the ABC Television Network.