Three months ago, bizarre murders cases occurred in the outskirts of Stallion City. It was later revealed that the terrible disasters had been caused by the t-virus: a mutagenic toxin created by Parasol Industries, an international enterprise with a pharmaceutical branch secretly working on bio-weaponry. The SCPD's special S.T.A.R.C.O.M. unit immediately began an investigation in the affair. Echo Team were the first to go investigate, and went missing for three days; Delta Team was then sent in to investigate the murders and find the whereabouts of their compatriots. The case was apparently closed thanks to the efforts of S.T.A.R.C.O.M. members Applebloom, Sweetie Belle, and Scootaloo. But the industries's experiments were far from finished.
