Animorphs (1998)

S2E6 The Front

Ax takes a job at a gadget store to understand what money is really worth. But when his boss starts acting strangely—obsessed with orders and eerily interested in Ax’s alien habits—he can’t help but wonder: is the man a Controller? Ax must balance his new role as an employee with the terrifying possibility that his paycheck might come with a Yeerk attached.