When Ianto's hand tore out of his own, Sulu came to a halt, turning around and expecting to see the thing chewing on Ianto's leg - or worse. He couldn't help feeling briefly relieved that Ianto had just tripped, and if there wasn't a giant man-eater coming right for them, he'd probably tease the other man for it. As it was, though, jokes were the furthest thing from his mind; instead, all he could think to do was run back to Ianto and grab his hands, hauling him up as the beast came thundering after them, gaining more ground every second they spent trying to get moving again.

He didn't bother asking if Ianto was fine, he just pulled him on - if Ianto's ankle was twisted or broken, he'd yelp or shout or do something, and then Sulu would consider a different approach to this whole running thing.