We’re closing in on the season finale, and the dark kryptonians are coming. Things are very likely stepping up on this episode to terrible lengths. Even the puns! Let’s react.

Info: SUPERGIRL PREPARES FOR BATTLE – Supergirl (Melissa Benoist) learns the true depth of Serena’s (guest star Anjali Jay) nefarious plans for Earth. Supergirl, Mon-El (Chris Wood) and Alura (guest star Erica Durance) must devise a plan to stop her before Serena gets to Earth. J’onn (David Harewood) prepares to say goodbye to his father (guest star Carl Lumby). Armen V. Kevorkian directed the episode written by Ray Utarnachitt & Cindy Lichtman (#322).