. ♪ >>> timothy bickerstaff is among the finalists considered for the new role of canine handler at theat's up? >> hey, sir. >> how are you? >> good. welcome back again. >> thanks. >> this process will end at some point. i promise you. >> sounds good, sir. >> colonel jim previtera called bickerstaff to his office for one final discussion. >> this thing has to work, this program has to work. i wanted to make sure we had the right person. it's clear to all of us that you have what it takes to do this job and to make it work and to be successful. i got no doubt at all, but at the same time, the other thing glaringly apparent to all of us, not only that you can do the job and do it well, we agree you should be a supervisor. that's all your supervisors saying, do you want to tie him to a dog for the next seven or eight years when he could be a lieutenant? the thing is, if i tie you for that dog, one thing is for certain, for probably at least five years you're tied to the dog. >> yes, sir. that's something i've debated for a while. there's satisfaction in moving up through the ranks and a di