Linda, however, is in her element. A “Survivor” superfan — her audition tape cruelly served as onboard entertainment for the doomed executives — Linda is soon gathering firewood and building a shelter to protect Bradley and his oozing leg wound. Yet instead of showing gratitude for her fish-and-fruit entrees, Bradley has no patience for this desert-island Martha Stewart. While she busies herself making hammocks and hats, he’s fretting to build a raft and return to his cushy life and glamour-puss fiancée (Edyll Ismail). Linda’s having none of it: After years of being mocked and excluded from karaoke nights, she’s now the one not only calling the tune but writing the lyrics.