Told in flashback from the perspective of Megan, the storyline unfolds when her commitment to faith and family is renewed after reading the blog of Julie Locke, the online journal that Julie kept after her 13 months old Dax was diagnosed with Acute Myeloid Leukemia (AML).
| Actor | Role |
|---|---|
 Eric Jay BeckAustin Locke | Austin Locke |
 Jeanne NeilsonJulie Locke | Julie Locke |
| CChristopher ShoneDax Locke | Dax Locke |
 Erin BetheaTrish | Trish |
 Burgess JenkinsWalt | Walt |
| AAbby de VosMary Kate | Mary Kate |
 Candace Cameron BureMegan | Megan |
 George NewbernDr. Sandler | Dr. Sandler |
 Anita RenfroeTheresa | Theresa |
 Karl T. WrightDr. Benson | Dr. Benson |
| NNicholas ShoneDax Locke | Dax Locke |
| MMatthew WestMark Hurtgren | Mark Hurtgren |
 Gary Ray MooreFeatured and Background | Featured and Background |