You missed someone

From Netflix's description of Ghostbusters II:

• Director Ivan Reitman's engaging sequel finds the fearless ghostbusting trio reuniting to bail out the Big Apple by saving the city from a massive slime attack and a flood of malevolent spirits on a fateful New Year's Eve.

Um.... Trio? So Winston does not exist?

Sometimes I wonder if people who write the descriptions know anything about the movie they describe.