In EP23 season 7, when jack was held hostage and being transferred to a medical base, He saw those medical equipment and those doctors and bellowed, "What are you going to do?" After being strapped on the operation table, he called Tony twice in a desperate way.
I've never seen Jack like this before. No matter what he is going through, he'll always grit his teeth and watch this down.(Especially in EP1, season six when he was facing Abu Fayed) Is Jack scared this time? And why is he scared?