Okay, this one gets a little complicated.

The first post declares an act of espionage performed by a secret agent. Then, the second post explains how that action was actually performed as a double cross by a double agent. Then, the third post explains how... you know what? Examples work better.
To avoid being incendiary, we'll use Kaos and Control from "Get Smart" as our rivaling agencies.

1st
Agent Smith steals artillery schematics from Kaos.
2nd
But actually, he was working for Kaos, and so provided false schematics.
3rd
But Control was aware of this, so they sent Smith undercover as one of their own agents to trick Kaos, while he triggered the self-destruct sequence.
4th
Or so they thought, for Smith was actually a Kaos agent all along, and instead of triggering the self-destruct he gave everyone ice cream!
5th
But that was all part of Control's plan, and the ice cream was laced with laxative.


If an agent's cover becomes too complicated (Two days between posts), he is unmasked and killed. The next poster begins again with a new agent.




I'll start.

Agent Johnson was sent by Control to infect Kaos's tomato crop with aphids.