Happy Valentine's Day from Netflix! The streaming service has released its first trailer for "Stranger Things 4," revealing the return of a major character.
Warning: Spoilers for "Stranger Things 3" ahead.
The trailer is titled "From Russia with love..." and takes place in snowy Russia. Laborers are seen working on a railroad, and right at the end one of the workers takes of his hat, revealing himself as Jim Hopper, played by David Harbour.