Pilar Holland

Supergirl's powers are tested when Reactron (guest star CHRIS BROWNING), one of Superman's formidable enemies, arrives in National City and targets the young hero. Also, Cat plans to run an expose on Supergirl.

Information about Quinn's real identity and past comes out; a senator facing public disgrace asks Olivia for help; Cyrus and Mellie put President Fitz in a compromising position.

Three children vanish while riding their bikes on the same path where a similar unsolved disappearance took place 30 years earlier.

Natalie throws a Fourth of July party and invites David as her date; Margaux ramps up her plan to remove anyone who stands in her way.

Raylan takes time away from his body-guarding assignment to track down an old lead; Boyd begins his mission to bring religion to the backwoods.