hhmmm . . you asked the question in a confusing way . . . so I will answer the best I can in broad terms:
If at expiration (3rd Friday in Sept), the contract would be worth $5.00 - $2.50 = $2.50 = the difference between the stock price and the strike-price
if the underlying stock reached $5.00 sometime before Expiration, then it would be worth that $5.00 (intrinsic value) PLUS the "time portion" . . . the risk value in Holding it longer.