Walkers vs. Red Nexus

Since the disappearance of Lily Cadieux AKA #28300, the Walkers have been in absolute chaos. Alexandria, AKA Walker #57875, aspires to take on the shoes of #28300 and explore what happened in the past. Red Nexus is approaching to destroy the Walkers. Alexandria wants to know what exactly caused the rift between Red Nexus and the Walkers.
Have Red Nexus been always evil?
That is the central question. That is why #57875 wants to explore.