That time Sophia ate the sleeping pills, the thief had thrown her in the ocean.
Sophia tried to escape the ocean and she did. And she tried to remember where her house is but it just didn't work. She got used from the forest. 50 days later and she remembered where the house were but the only thing is there is no signal. 50 days later (1 year after the incident) she grabbed her phone and went to her YouTube downloads, and watched how to say S.O.S in morse code. So, at the middle of the night, she did it.