S1·E11 Ryōta's First Love Letter

Love is in the air for Ryota, but when he and his little girlfriend fall into the clutches of a criminal, Ryoma's faces a crisis: steal enriched uranium for an arms dealer and allow him to make a nuclear bomb or Ryota and his girlfriend are dead. With the arms dealer watching and listening, Ryoma's choices are limited. How can he possibly get out of this one?