"Marvel's Agents of S.H.I.E.L.D." Season 2 just keeps getting better! By the looks of next Tuesday's all-new episode, "Melinda" (S02E17), we haven't seen anything yet. According to a newly release promo preview video, Episode 17 will reveal Agent May's transformation into "The Cavalry." Keep reading for more "Melinda" spoilers, and to watch the full sneak-peek preview!

When "Marvel's Agents of S.H.I.E.L.D." returns on Tuesday, April 14, it's all about Melinda May!

Care for a sneak-peek? Warning: spoilers ahead!

Thankfully, ABC has given fans an awesome promo preview for next week's Episode 17, called "Melinda" (S02E17).

Watch the full preview video below to find out just what to expect:

"People with powers can be trained or feared," explains the narrator in the preview.

"There's a reason why they call Agent May 'The Cavalry,' and it will finally be revealed," suggests the voiceover.

What exactly is that reason? We'll have to wait and find out!

As we previously reported, according to the official synopsis of "Melinda," Episode 17 of Season 2, "The story of Melinda May's transformation into "The Cavalry" is revealed as she finds herself at a crossroads in the war between Coulson and Gonzales."

"As Skye learns more about her true heritage from Lincoln, the truth about the Inhumans will send her in a new direction, on "Marvel's Agents of S.H.I.E.L.D.," TUESDAY, APRIL 14 (9:00-10:00 p.m., ET) on the ABC Television Network," summarizes the synopsis.

Written by DJ Doyle and directed by Gary A. Brown, "Melinda" (S02E17) will guest star Blair Underwood as Dr. Andrew Garner.

Are you excited for next week's episode of "Marvel's Agents of S.H.I.E.L.D." yet?

Don't forget to tune in to ABC on April 14 at 9 PM to catch all the entertainment of "Melinda," Episode 17 of "Marvel's Agents of S.H.I.E.L.D." Season 2!

Any predictions for the upcoming episode or thoughts about the promo preview and spoilers? Voice your opinions in the comments section below!