The CW released two new clips from their Tuesday night lineup in anticipation for next week, when the "The Flash" returns and "iZombie" debuts.

In a behind-the-scenes featurette for "The Flash," executive producer Andrew Kreisberg speaks about the appearance of Mark Marden, better known as the Weather Wizard. Kreisberg promises a slew of special effects and a twist he hopes will take fans by surprise.

The new promo mashed up both shows, promising a regular night of scarlet speedsters and zombies that kicks off next Tuesday.

"The Flash" and "iZombie" take over the CW on March 17 starting at 8 p.m. EST.