A wave of exhaustion rolled over Harry. If it took him a moment longer to get to his feet who could blame him? Lucky he had Sif there to drag him up and get him moving. His brain belatedly reminded him of the fact, reporting keep your feet going Harry, if you stop now, you're going to die.
"Go! Go! Go!" Harry urged the others once he finally tuned in with what was happening around them. He'd meant to be enough of a distraction so they'd get through and it had worked with Sif at his side. Now it was time for Super-Kid, Wonder Woman and the damned vampire to lead the show. Harry couldn't make a hole in such a tight space without considerable risk to the passage. Which they needed to get back out again.
"I'm okay, just needed a breather," Harry reported to Sif, stopping his tracks to whip around the way they'd come before he hurriedly backed up the passage.
Elsa ahead of him needed as much distance between him as she could get to keep her explosives from detonating. Alucard, Kara and Diana were now her personal guard. So Harry glanced at Sif and nodded once.
Secure the passage. They could do that. "You got a plan?" Harry shouted at Sif, allowing her to engage those that breached the passage while he paused long enough to ready himself for another round. He also took the moment to reach into his pockets to fish out a small container of playdoh. It'd been in his pockets when he'd arrived on Knowhere, thank fuck. Harry popped open the lid, tore off a piece and unceremoniously stuck it to the wall, imbuing it with a bit of his magic before he stuffed the rest away again, making a magical link.
"Hey!" He shouted, "Get one of the big guys to fire on us!" How long he could hold a shield against such a terrible onslaught was up for grabs. But anything to give the others more time. Harry grit his teeth again and shoved away the fatigue sapping at his bones. Too much too quickly, his body was saying. Whatever. He didn't have time for exhaustion so he sucked it up and leapt forward to throw another, less forceful, kinetic blast down the passage. Don't bring down the walls, Harry.