get the jump on someone/something [看美剧学俚语 Loki s01e01]

[看美剧学俚语LOkiS01E01]

It appears that when they arrived, somebody got the jump on 'em.

get the jump on someone/something

to get an advantage over other people by doing something before they do.
v. 
抢在...之前行动
比…先下手

The company is trying to get a jump on their competitors by putting a lot of money into research.
该公司正试图通过在研究上投入大量资金来超越竞争对手。
She got the jump on her classmates by going to summer school and was able to graduate earlier．
因为她去上暑期学校，所以能够比其他同学早些毕业。
Mr. loh says he wanted to get a jump on the market before property values rise .
罗说，他想在房地产升值之前把握市场先机。