Accomplices

I've found an expression that sounds like "into hoots" or "into hoods" in the dialogue of an old movie.
I suspect that it means that both men were accomplices; maybe it's American slang.
But, is it into hoots, into hoods or some other expression or idiom that sounds alike?

This is the dialogue:

Tom: He didn't want the stock options found.
Kerry: Yeah, he didn't want the merger to go through. And Harrison was his accomplice.
Tom: Sure, the two of them were [into hoods - into hoots]