However, she was then captured by Captain America, who drained the Pym Particles from her body to use them to shrink and capture anyone who opposed him.
At some point, Hank gives Janet a dose of the Giant-Man serum, which allows her to grow to gigantic proportions.
It was later revealed, however, that Hank had been replaced by a impostor by at that point, so it was possible that some flaw had deliberately put in the formula.
The film's biggest hint was Hank Pym Michael Douglas venturing into the Quantum Realm and finding his wife, Janet Van Dyne Michelle Pfeiffer.
She was saved again, this time by Hawkeye, Thor and Hulk.
To protect their , from the horrifying truth, told her that van Dyne had died in a plane crash.