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| Episode Number | 21 |
|---|---|
| Season | 15 |
| Aired | 2018-05-01 |
| Overview | Sara Carter begs Gibbs to investigate her mother’s murder as she believes the local authorities convicted the wrong man. Also, Abby is awarded a dinner reservation for two to a brand-new five-star restaurant in an igloo and has to decide which coworker deserves to go with her. |
| Runtime | 45 minutes |
| Absolute Number | 351 |
| Finale Type |