set one's sights on

set (one's) sights on (someone or something)

To identify, regard, or focus on someone or something as one's goal. Every since she was a little girl, Janet has set her sights on being a fighter pilot. They're setting their sights on you to be their new head of marketing.
See also: on, set, sight

set one's sights on

Have as a goal, as in She's set her sights on law school. This expression alludes to the device on a firearm used for taking aim. [Mid-1900s]
See also: on, set, sight