Kàndào lǎobǎn tiěqīng de liǎn, dàjiā dōu juéde dàhuò-líntóu le.
Seeing the boss's ashen face, everyone felt that disaster was about to strike.
Tips
usage
Like 大难临头, it is a whole clause, "a great disaster comes down on one's head", so it usually stands as the predicate, often with 了. People also use it with mock alarm, for being caught out by a parent or a teacher.