'The Strain' Spoilers: Will Mía Maestro's Nora Martinez End Up Near 'The Third Rail?' [Watch Video]

With The Strain getting scarier and its vampire invasion growing at an alarming speed, FX has released a new teaser trailer for the upcoming episode, 'The Third Rail.' Based on the best-selling series by Dark Horse Comics from visionary director Guillermo Del Toro, Nora Martinez (Mia Maestro) must travel deep inside the dark tunnels into the vampire nest.

In our recent recap, Kelly Goodweather (Natalie Brown) entered her household and suddenly discovered her boyfriend had been turned to a vicious bloodsucker. With the infection spreading inside her, we saw Kelly slowly transforming into a bloodthirsty creature of the night. While Eph (Corey Stoll) was desperately searching for her, Kelly ended up feeding on two innocent lives.

In the trailer, we see Nora (Maestro) getting ready to head straight down into the subway tunnels. She believes what the old vampire hunter (David Bradley) has been telling them. If they slay The Master, then this whole nightmare ends with him as well.

But things don't go accordingly as planned, because the group never thought The Master had risen an army deep underground in the subways.

We still don't know what happened to Dutch (Ruta Gedmintas) after her confrontation with the old and dying billionaire, Eldritch Palmer (Jonathan Hyde). Will she rejoin the group on their mission? Or has she completely abandoned them in their hour of need?

Who will come out of the subway tunnels alive?

Check out 'The Third Rail'  here:

The Strain airs Sundays on FX at 10pm. Readers, are you excited to see the next episode, 'The Third Rail?'