When Lex's thugs hold Lionel and Martha hostage, Clark must execute a rescue without revealing his powers.
As Mary Margaret goes into labor, the residents of Storybrooke work to protect her and the baby from Zelena; Glinda tries to convince Zelena to join her as a protector of Oz.
When a comic-book-based movie shoots in Smallville, Clark must save the lead actress (Christina Milian) from a runaway car; Lex discovers Lionel at the cabin.
The Fringe Division undertakes a puzzling investigation into why victims are disintegrating into ash; the case casts light on Broyles' past; personal details about the division leader emerge.
A gang of bank robbers threatens the city; Diggle encourages Oliver to look past his father's list and help other people in need.