The star claims the entire cast is on edge because of the volatile nature of the series.
He explains, "I know something catastrophic and violent is going to happen at the end of this season. So we all sort of sit around in fear.
"All of us are pretty concerned about being relieved of our duties over in Hawaii. It's the kind of job where you can't be too complacent.
"You can't just put your feet up and take it easy. It could happen at anytime."
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