Correct

当头

/ dāngtóu / 
Strokes

Definition

coming right into one's face/imminent/to put first

Example

As a Verb

be head-on; be overhead

1
Lièrì
烈日
dāngtóu
当头
  
。

The scorching sun was shining right overhead. / The hot sun was shining directly on our heads.

As a Verb

be faced with

2
Guónándāngtóu
国难当头

be faced with a national crisis

As a Verb

put in the first place

3
Bù
不
néng
能
yù
遇
shì
事
qián
钱
dāngtóu
当头
  
。

You can't put money above everything else.