This is a main story quest and cannot be missed.
You will encounter a Dark Matter Fracking Station when you get to "Operation: The Morning After, Special Investigation: Daisy". It is the first mission in this operation. When you get to the Fracking Station, simply hack the consoles 3 times, every time you hack the console you must defend against a wave of enemies for about 30 seconds.
Here is a list of all the main operations in Agents of Mayhem:
• Operation: Spin-off
• Operation: Raging Arrow, Rama's Recruitment
• Operation: Heaven Sent
• Operation: The Morning After, Daisy's Recruitment
• Operation: Star Power
• Operation: Dimensions of the Ninja, Scheherezade Recruitment
• Operation: Machine Man
• Operation: Red Queen
• Operation: Mad House
• Operation: Damocles