How is “follow on” used?

In The Dark Knight (2008), one line is: “I trust you don't have me followed on my day off.”

Which movie is “follow on” from?

The clip at the top of this page is from The Dark Knight (2008).

I trust you don't have me followed on my day off.

4 作品で登場 · 1 本目

to go somewhere after sb else has gone there

3 本の映画に登場

1
to go somewhere after sb else has gone there
You go to the beach with the kids and I'll follow on when I've finished work.
2
to play a second innings (= a period during which a team is batting) immediately after its first, because it has failed to reach a particular score

定義：Oxford Advanced Learner's Dictionary 第 9 版