Cross Species Outbreak Arc

The Cross Species Outbreak Arc is one of the many story arcs of the series.
== Synopsis ==
A number of Cross-Species experiments created by T.C.R.I using The Kraang's research escape into Manhattan and infect its population with a deadly virus, forcing our protagonists to find a cure before the virus spreads to the entire world.
All the protagonists serves as the main focus of the arc.
Alister Smythe seves as the main antagonist of the Arc.
It has stated that this will be among one of the darkest story arcs of the series.