By then Jack should be here with help.
2 seconds sound clip from the Invasion of the Body Snatchers (1956) movie soundboard.
You can hear this line at 00:53:39.656 in the Blu-ray version of the movie.
Quote context
[...]
- Be on the lookout for a 1955 black and white Ford sedan, license number 2-X-3-7-7-9-6.
- We'll try to make it to my office. Cut into that alley on the right.
- Do you think he'll come back?
- I don't think they'll check again before morning.
- By then Jack should be here with help.
- What if Jack doesn't get through?
- Here, now take two of these. They'll help you to stay awake.
- We can't close our eyes all night.
- We may wake up changed into something evil and inhuman.
- But just some people, Miles.
[...]