Australia's Deadliest (2013)

S1E5 Lethal Jelly

One morning, Mia wakes up and finds herself unable to leave her bed. The doctors are puzzled by her sudden paralysis, but a surprising revelation eventually uncovers the cause. Simultaneously, we meet Mike, a diver who has been stung by an Irukandji jellyfish, but only seeks treatment hours after the venom has taken effect. Is it too late for him? Meanwhile, Carol faces a harrowing ordeal when a sea lion attacks her in the ocean, causing a deep wound in her leg. She struggles fiercely to reach the shore and survive.