When it hits
From day 15 at 12:00 on the 
Wage Slave's run
No warning comes first.
Starts with Zombie Horde - Phase 2, ends with 
Zombie Horde - End.
The same on every run: Student, Warehouse Manager
What comes
1 wave, 10 zombies in all.
| Wave | When | Zombies | Which | Total HP (Standard) |
|---|---|---|---|---|
| Wave 1 | From day 15 at 12:00 | 10 | Office Worker Zombie×3Neighbor Zombie×3Barefoot Zombie×2Brute Zombie×1Crawler Zombie×1 | 1,068 |
From the game files3
Crisis 106
| id | 106 |
|---|---|
| CrisisID | 106 |
| StartEvent | [40635] |
| EndEvent | [40639] |
| Des | Crisis_Des_3 |
| Des_Local | 尸潮 阶段二 |
| CrisisShowType | 1 |
| CrisisShowPara | [8,9] |
| CrisisFmod | ["event:/Model/Zombie/zombie_zamen10","event:/Model/Zombie/zombie_zamen11","event:/Model/Zombie/zombie_zamen12","event:/Model/Zombie/zombie_zamen14","event:/Model/Zombie/weijizamen05"] |
| CrisisFmodTime | [11.9,8.1,12,10.2,11.2] |
| CrisisFmodGapMin | 1.5 |
| CrisisFmodGapMax | 4 |