When Mary Margaret learns of Cora and Regina's plan for the dagger, she resolves to find it first; Mr. Gold continues his search for Bae; the Blue Fairy offers Snow White an enchantment to save her mother.
Finale. Dangerous threats keep Michael and Lincoln fighting to protect Sara and Mike; Poseidon's attempts to outsmart Michael and the rest of the gang lead them to the ultimate showdown.
As Michael, Lincoln and the remaining Ogygia gang attempt to escape Yemen, they find themselves fleeing from a vengeful Cyclops.
An angry resident of The Glades embarks on a killing and kidnapping spree and announces that the Arrow's vigilantism was his inspiration; Malcolm asks Moira to find the person responsible for his attempted murder.