Battle of the Playground

The Battle of the Playground was a battle between the covert peacekeeping organization S.H.I.E.L.D. and the Inhuman known as Hive, who attempted to unleash the the Absolution Virus and turn all humans into Inhumans.

Background
Following a battle between S.H.I.E.L.D. and a faction of Inhumans, a Quinjet loaded with Terrigen Crystals crashed into the ocean and contaminated a shoal of fish. The fish were later caught turned into fish oil pills, which were subsequently distributed worldwide.

While S.H.I.E.L.D. successfully removed most of the tainted pills from store shelves, at least five individuals consumed what was not caught and inadvertently discovered their true heritage after undergoing Terrigenesis. At the same time, however, four of the five individuals were executed by the Inhuman Lash.

In response to the outbreak, President Matthew Ellis approved the formation of the Advanced Threat Containment Unit, which would track down enhanced individuals while simultaneously handling any and all incidents involving said individuals.

Battle
To be added

Aftermath
Several months later, with HYDRA destroyed and the Sokovia Accords ratified, S.H.I.E.L.D. was relegitimized but needed a new director to be the public face since the world still believed that Coulson was dead.

Coulson met with President Ellis and requested a successor with superpowers who could be trusted by the public. Both men agreed that Jeffrey Mace, a journalist and a survivor of the Vienna bombing who underwent Terrigenesis during the Outbreak, was the perfect candidate.

Shortly afterwards, Johnson went rogue and began operating as a vigilante. Dubbed "Quake" by the media, her activities made headlines, prompting many to question the controversial regulations put in place by the Accords.