Interceptors

The year is 3025 and humanity is at its worst, disease, famine, war you name it they've got it. The only way to fix their filter is to alter the past and that's what the interceptors are for.

They enter the conscious of a human being in the past seconds before their intended death , in this case the twenty first century. The rules are easy.

1) do not disobey direct orders
2) follow protocol
3) any interaction with other beings from the past that is unnecessary is forbidden
4) the interceptor is to resume the life of the host while in between missions
5) DO NOT under any circumstances reveal your true identity to anyone besides your team and other interceptors
Failure to preform these tasks will result in serious penalties and/ or death