Time Testing limit with three attempts

Hi All,

I'm trying to figure out how I can set-up countdown timer in my test that won't reset every time my students start there 2nd and 3rd attempt on a 3 attempt max test.  I know how to set the timer up in the edit result slides, but I'm giving my students 4 total hr.'s to complete a test that they have three attempts at within the 4  hour window  When I set the timer for 4 hr.'s. it resets when they fail giving them another 4hr's.  I want my students to have a maximum of  3 attempts "which I have set properly in Storyline", but also want Storyline to stop the test where their at and submit it.  I hope this is clear.