go into action
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go into action
To begin doing something or become active suddenly and very quickly. Firefighters need to be able to go into action at a moment's notice. If any movement is detected once this sensor is activated, the building's security measures will go into action.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
go into action
and swing into actionto start doing something. I usually get to work at 7:45, get some coffee, and I go into action at 8:00. When the ball is hit in my direction, you should see me swing into action.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.