Ahead of Game 1, Natario channeled his inner Paul Revere and yelled, "The Astros are coming!"
Natario started at the Paul Revere House, then transitioned to Quincy Market, before finishing at Fenway Park.
This is the second year in a row Houston has invaded Boston in the postseason. No warnings helped last year, as the Astros eliminated the Red Sox in the American League Divisional Series.
Despite everything, Boston fans were feeling confident prior to Game 1. But Astros fans who made the trip are feeling confident as well.
Natario ran into many of them around the city on Saturday.
From the orange around the city, to Natario's shouts, it's safe to say Boston is aware who is in town.
Follow Nick Natario on Facebook and Twitter.