spring into action
To begin doing something or become active suddenly and very quickly. Firefighters need to be able to spring into action at a moment's notice. If any movement is detected once this sensor is activated, the building's security measures will spring into action.
spring into action
Fig. to suddenly begin moving or doing something. As soon as the boss came in the door, everyone sprang into action. Every morning, I jump out of bed and spring into action.
spring to/into ˈlife/ˈaction
(of a person or thing) suddenly become active or start to work: As soon as he heard the alarm bell, he sprang into action.This machine will spring into life at the touch of a button.