The plot - if that's what we're calling it - has all the life of a corpse. Same old same old. I seriously doubt anyone could say they watched it for the story. there basically isn't one.
To be fair I've grown incredibly bored of these Marvel movies. The plot in all of them is aimed at a kindergarten level. What you get with Dead Pool is a set of one-liners (which aren't all that good) and a tiny bit of grit in the action (though it'll never form a pearl),
I skipped Ant Man because I couldn't watch another feeble origin story. Sadly, I succumbed to this. The writers of these films have used the same basic script over and over. They have great characters, but the stories are pure tripe.