Err... Sorry to play the part of an intervening GM, but that is a 20 foot wall... The only one strong enough to leap that would be a herculean and even then only just by the tip of their fingers what with it being designed to keep Subjects in. At this point, only Three can fly people over, unless there is somebody with a makeshift rope that can be lowered or perhaps working as a group to lift/toss someone to reach the top. Lav, would you mind backtracking in your post to modify how Three made it over to reflect this?
Work together people, this is a jailbreak after all.