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Countdown
The apartment complex is now without electricity. Sae Bom and Yi Hyun find traces of an infected person inside Building 101. Who could be infected? The residents suspect others of being infected and wait for the lockdown to end. Meanwhile, Tae Seok makes a decision knowing that the antibodies may be inside Sae Bom.
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Other episodes for this season
![Public Rental Apartment](https://image.tmdb.org/t/p/w300/4OIry9lTCs5kJnA5ZdEonOl3Oa9.jpg)
![Thirsty Patients](https://image.tmdb.org/t/p/w300/4HDrKtRlS9eNJrkOaixe6rCVVPZ.jpg)
![Locked In](https://image.tmdb.org/t/p/w300/4YSq8n9HTx1r4MkqAxkC0mXiwp8.jpg)
![The Spread](https://image.tmdb.org/t/p/w300/bdnGdT8FcMRibfkwhGm9ACpJGQo.jpg)
![The Outsiders](https://image.tmdb.org/t/p/w300/8Y2W3WJYuMNvYLTmjVoEmAYOMOk.jpg)
![One Man’s Life](https://image.tmdb.org/t/p/w300/4mbGDNi4LCMhrvnzTLpIG4bFn3v.jpg)
![The Intruder](https://image.tmdb.org/t/p/w300/wVVKz7hC1D1DiFlXJ6AJLgZ9u6X.jpg)
![Countdown](https://image.tmdb.org/t/p/w300/rm4EsLIwx6UpgeJrT2zi13CjeGq.jpg)
![Dwindling Water](https://image.tmdb.org/t/p/w300/btW8AALfDSdj98PJOFM2OE7JQcQ.jpg)
![Kim Se Hoon Disappears](https://image.tmdb.org/t/p/w300/50VDTTcn4dNl8aRxFLTN324zXy4.jpg)
![Backup Power](https://image.tmdb.org/t/p/w300/5V2giiA1fVn42i1423MrA2P69N7.jpg)
![Happiness Is With You](https://image.tmdb.org/t/p/w300/qonWRUmpQDKKAA9plUmoA3IfwwR.jpg)