The Nexus

The Nexus, previously known as The Agency, is the base of operations for E.V.O.L.V.E.. Currently, it is a large research lab that floats off of the ground, leaving a hole where The Agency once was. However the agency still exists in the OG timeline.

The Agency
The Agency was established in Chapter 2: Season 2 as E.G.O.'s base. A.L.T.E.R. slowly took over the island, starting with The Grotto, then The Rig, and then The Yacht once they got Deadpool on their side. At this point, the only E.G.O. controlled location was The Agency, but not for long.

A.L.T.E.R.'s Attack
A.L.T.E.R. had developed a specialised missile for destroying The Agency. Once this missile was deployed, the agency was gone. There was only a hole where it used to be. A.L.T.E.R. took over the remains of the agency, therefore claiming the whole island.

E.V.O.L.V.E. Takes Over
E.V.O.L.V.E. had also been developing experimental nano-technology. Their first test subjects for this were Omega and Carbide. Both of them commanded a team of Diecasts and Chromiums to raid The Agency. They then modified the remains with their new technology, turning it into a floating lab.

Current Status
All the A.L.T.E.R. members who died in the raid have been turned into Diecasts and Chromiums. E.V.O.L.V.E. is currently working on improving their nano-tech and preparing their space program.