Hive's Campaign was the attempt of Hive to take control of the entire Earth and rule the Inhumans.
Banished from Earth
"Over generations, HYDRA's taken different shapes. The entity has been given different names. But every generation has sent men through the portal, hoping to save or at least serve our leader on the other side."
Thousands of years ago, Kree Reapers were on Earth and found a Mayan hunter who they subjected to an experimental process called Terrigenesis. This experiment caused the hunter to evolve into a parasitical entity capable of feasting off living cells, control other Inhumans' minds, and reanimate dead bodies into host bodies. After assuming the identity of "Alveus" or Latin for "Hive", the Kree wanted to use this Inhuman's ability for their own uses. However, the Inhuman betrayed his creators and raised an army of other Inhumans against the Kree and flushed them from the Earth.
Because of these great abilities, Alveus' Inhuman followers grew afraid of his power. Several of his Inhuman and Human followers banished the Inhuman God by sending him through a Kree portal to a distant, barren planet. Alveus' other followers, who still had faith in their leader, founded a secret society with the sole purpose of bringing their leader back so he would conquer the Earth. That secret society would become HYDRA in later years.
Surviving on Maveth
"That THING has been killing everyone that's come through here for centuries."
On the desolate planet of Maveth, Hive had been feasting on the people who were sent through the Monolith to Maveth as sacrifices for Hive to control and preserve himself into. This allowed Hive to survive many lifespans. His many victims consisted of Lord Manzini, who was a worshipper of Hive who was sent when he grabbed the white stone in a lottery held by English lords and nobles in a castle in Gloucestershire, England in 1839. In 1970, Nathaniel Malick was sent after being tricked and betrayed by his brother, Gideon Malick into being selected to being sacrificed to Hive.
In 2001, NASA sent astronauts Will Daniels, Austin, Brubaker and Taylor to Maveth. Hive killed off the astronauts one by one, causing Daniels to survive and fend for himself, and for the next 14 years, Daniels would indeed survive by occasionally outsmarting Hive.
"You'll help me learn how S.H.I.E.L.D. was able to achieve something with the portal that HYDRA, in thousands of years, has never been able to accomplish." "And what is that?" "They brought someone back."
In 2015, S.H.I.E.L.D. agent Jemma Simmons was accidentally transported to Maveth when she tried to seal the Monolith up. She took shelter with Will Daniels for several months, surviving and avoiding Hive & the "No-Fly Zone". When Simmons had just about given up all hopes about ever returning home, she and Daniels spotted the flare Leo Fitz shot through the portal and ran for the exit. Although Simmons escaped and reunited with her friends, Daniels did not survive his encounter with Hive. The Inhuman took possession of Daniels' corpse and used his memories to return to his hideout.
"This body is only a vessel, one of many who gave their life so that I could survive. As promised, all of the travelers, the brave men who sacrificed for me, have finally returned thanks to the Malick family. You'll all get what you deserve, and for those of you still having doubts, see and believe."
"I spent a thousand years wondering what would happen if the blue angels should ever return. You're smaller than I remember. We don't have to fight, I'm still grateful to you for making me." "We should not have chosen you." "That was providence guiding your hand."
"I'll shed this host and take you, then march down to announce to the S.H.I.E.L.D. agents that I finally succeeded in defeating the Great Alveus. Our day is won, no need to remain concealed in the shadows." "Yeah, you sound just like me."