Blindspot 4×14 is title The Big Blast From the Past Episode. An active bomber forces the team to delve into a case from their past.

Blindspot 4×14 synopsis

03/08/2019 (08:00PM – 09:00PM) (Friday) : An active bomber forces the team to delve into a case from their past. Starring Sullivan Stapleton as Kurt Weller, Jaimie Alexander as Jane Doe, Rob Brown as Edgar Reade, Audrey Esparza as Tasha Zapata, Ashley Johnson as Patterson and Ennis Esmer as Rich DotCom

Promo Trailer

Source: NBC