Shawn had expected Hugo to reach them first. After all, among the Bennet brothers, Hugo was more experienced in combat and more familiar with the battlefield. That's why the plan to escape had included Hugo Bennet intervening in the chase.
And, as expected, Hugo came after them and almost foiled their plan. "Fortunately," Jonathan had foreseen this and prepared a plan to throw off Hugo. They succeeded in stopping Hugo, but not in ending him.
In other words, Hugo was truly someone everyone was prepared to stop at all costs.
Who would have thought there was another Bennet just as capable as Hugo when it came to these things?
Once Penny calmed Slater down, she yelled at Shawn to drag their hostage out. So, Shawn carried Brad and the two pilots to the shore. After that, the three of them just idled by the shore.