Valkyrie - [s6e1]

: The title refers to the bioweapon case but also nods to the historical German plot to assassinate Hitler, a connection Esposito points out during the investigation.

While the episode succeeds in raising the stakes, it faces some criticism for its dialogue and the "melodramatic" nature of its ending. [S6E1] Valkyrie

“We all know Castle won't die, but then again I suppose that's not really the point of the cliffhanger.” Reddit · r/CastleTV · 12 years ago Notable Moments & Trivia : The title refers to the bioweapon case

: This marks the first time a Castle season premiere ended on a two-part cliffhanger. [S6E1] Valkyrie

: Despite the distance, the episode leans into "shipper heaven" with domestic morning scenes and Beckett wearing her engagement ring on a necklace.