In “Echo,” Marvel again uses Disney+ to cater to a subsection of fans – with a hard-edged, R-rated throwback to its Netflix “street-level” series (think “Luke Cage” and “Jessica ...

Here’s everything to know before watching Echo. L-R: Jeremy Renner as Clint/Hawkeye; Fra Fee as Kazi; Hailee Steinfeld as Kate Bishop; and Alaqua Cox as Maya LopezCourtesy of Marvel In Hawkeye ...