There are three states of readiness during wartime:
Condition One: Attack is present, or imminent. This alert places the ship at its highest state of readiness. All crews go to their combat posts. Bulkhead doors are closed in case of decompression. Additional Viper pilots are scrambled to supplement the Combat Air Patrol and the Alert Fighters, and flight support crews man their stations. The Combat Information Center (CIC) is locked down and the ship’s commander is on station.
Condition Two: Threat probable, but not present. Crew readiness is somewhat more relaxed than full readiness. This is usually ordered directly after the end of a Condition One alert.
Condition Three: This is the “all clear” alert, returning crews to their normal, day-to-day non-combat duties after Conditions One or Two. This is normal cruising during wartime. Weapons are partially manned, but the ship is at less than full readiness.
Every time we are told “gear up for surgery,” this scene turns on in my head. I see it. I hear it.
Right after what you see in the clip, Commander Adama makes the following announcement over the ships 1-MC: