Maybe it's the story finally kicking into gear after weeks of world building.

I think it's just the feminist movement from the 1960's finally kicking in.

Along about this time my smoke alarm finally kicked in.

I opened the car door to give chase, but my brain finally kicked in and made me pull up.

Something's finally kicked her awake, and I want to know what.

The medication had finally kicked in and she was dozing, he said.

The pain 311 medication finally kicked in, and you're making my head hurt all over again.

The back-up system finally kicked in as her count reached eight.

He was also chronically late, until his conscience finally kicked in this season.

Or do the Rangers keep him, hoping that maturity has finally kicked in at age 25?