"I'm not here to play with integrity. I'm here to f--- you over in every way, shape, or form." With those explosive words, Jenna Lewis-Dougherty — the original Survivor icon who hasn't played in 42 seasons — declares war on the show's modern era as she returns for the monumental 50th season (premiering Feb. 25 on CBS).

This isn't a nostalgia trip. Jenna, who helped create reality TV's first alliance back in 2000, is returning with a vengeance. "I'm like stale milk at the back of the fridge," she tells TheEntBase in an exclusive interview from Fiji. "Nobody is thinking that I'm going to win this — and that's my greatest weapon."

The 48-year-old real estate mogul — who ranks in the top 1% of agents nationally — hasn't just been sitting idle. She's been studying the game from afar, building a life of luxury with a Tahoe home and successful family, all while plotting her return. "I'm not in the Survivor-verse," she reveals. "I don't go to premieres. I don't follow any of these players. I'm coming in completely cold — and that's exactly how I want it."

Jenna Lewis-Dougherty returns to 'Survivor' after 42 seasons. CBS

TheEntBase: You haven't played since before immunity idols existed. How do you plan to adapt?

JENNA LEWIS-DOUGHERTY: Adaptation? I'm not adapting — they are. I ran All-Stars from day one. While everyone was obsessed with 'Romber,' I was targeting winners and building alliances that lasted. I'll be someone else's numbers until there are no other numbers left. That's the game I know, and that's the game I'm bringing back.

What's different about you now versus when you last played?

Everything. I was a young mom trying to make it work back then. Now? I'm successful, confident, and I don't need this game. That makes me dangerous. When you don't need something, you can play without fear. And I plan to play dirty.

Jenna with her family — her secret weapon for staying grounded. CBS

Jenna's strategy is already causing buzz among fans: play the underestimated old-schooler while secretly manipulating from the shadows. "They think we had no strategy back then," she scoffs. "Watch me remind them what real gameplay looks like."

With her daughters now in law school and a thriving career, Jenna has nothing to lose — and everything to gain by tearing apart the new era's reputation for kinder, gentler gameplay. As she puts it: "Take cover. I'm coming for everyone."

(This is one of 24 exclusive interviews with the Survivor 50 cast. Follow for updates as more players reveal their strategies.)