At a large base hidden on the outskirts of Washington, artillery fire was raging.
It was clearly a vast, flat base warehouse. Although it had no skyscrapers, the base itself covered more than a thousand acres of the surrounding area.
There were also numerous airfields around it, making it clear that this was a busy S.H.I.E.L.D. base and an important transportation hub.
But now, the once-clean airfields were filled with artillery fire, and Fragmented Stone and wreckage could be seen everywhere throughout the neat, orderly base.
The gunfire from within did not let up for even a moment. Now and then, the roar of rockets could even be heard.
Several squads charged toward the airfield, their target being the fighter jets ahead.
At the same time, two other squads followed closely behind them and opened fire without hesitation on the people in front.
Leo felt a headache coming on as he watched this scene.
Sandbox was a relatively semi-public location. After all, Sandbox had originally been a research base.
But no one had expected that most of it would be occupied by members of Hydra.
No one would have thought that so many Hydra members had been lying in wait inside Sandbox Base.
As a result, the remaining S.H.I.E.L.D. agents had actually been reduced to fleeing for their lives.
As for how Leo could tell so quickly...
It was because the many researchers being held down and prevented from moving by people wearing S.H.I.E.L.D. agent uniforms made the situation obvious.
Thus, under the suppression of such a massive number of Hydra members, the S.H.I.E.L.D. agents had fallen into a desperate encirclement.
Two hundred Hydra members on the outskirts slowly closed in on the center. There were only forty or fifty people in the middle, and they were already in an