Subsea saviours

Your boat has capsized. Seconds before you were tossed into the angry spume you sent a Mayday signal, but as conditions worsen the chances of rescue seem slim.

Off in the distance you spy a rescue vessel fruitlessly searching for you in the foam and, amid the crashing waves, you are taunted by the hum of a spotter plane, straining for a glimpse through the driving rain.

Just when you think things can get no worse, you catch a glimpse of a terrifying dark shape slicing through the water beneath your legs.

Resigned to your fate as shark-fodder all hope seems lost. But then, your subsea stalker reveals its true identity. It is a robot. And it has come to rescue you.

Greeting you with an assurance that help is on its way, your submersible saviour transmits your precise location to the master rescue vessel and inflates a life raft for you to cling to.