At the scene of the Americops riot,
USAgent is battling Captain America (Sam Wilson) to take the shield
from him. As they battle in the streets, right-wing radio host Harry
Hauser denounces Sam Cap to his listening audience as not worthy of
the shield. Sam suddenly pops his wings and flies the Agent into a
tunnel where he has the advantage of seeing in the dark, thanks to
his connection with owls and is there able to defeat his opponent.
Sam tells USAgent that Steve Rogers supports him and he trusts Steve.
The Agent gives him a cynical look and says “You never know as much
as you think you do”....
Sam Cap goes back to where Rage was
dumped on a tower and Rage denounces Cap as a sell-out, counseling
patience and inaction for his people in a time of crisis. Sam heads
to surgery where Dr. Claire Temple implants a Stark-made device in
his head, one which will (as Tony explains) transmit the psychic info
Sam receives from birds and convert it into still images and video,
making Sam the router for the biggest surveillance in the world.
Sam records a message for the
public—that his new ability will allow him to oversee the actions
of the Americops and respond as needed. He signs off, USAgent's last
words ringing in his head: “You never know as much as you think you
do”....
A flashback explains that comment:
earlier when Americops CEO Paul Keane, Harry Hauser, and Senator Tom
Herald were trying to convince him to fight Sam Cap for the shield,
Walker was not going along with them. Then Captain America Steve
Rogers revealed himself and asked Walker to take on the job of
defeating Sam Cap....