| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Just Add Time Travel |
February 1, 2019
Prime Video
|
25 | |
| S04E02 | Just Add Plants |
February 1, 2019
Prime Video
|
25 | |
| S04E03 | Just Add Codes |
February 1, 2019
Prime Video
|
25 | |
| S04E04 | Just Add Piper |
February 1, 2019
Prime Video
|
25 | |
| S04E05 | Just Add Rot |
February 1, 2019
Prime Video
|
25 | |
| S04E06 | Just Add Tomorrow |
February 1, 2019
Prime Video
|
25 | |
| S04E07 | Just Add Perspective |
February 1, 2019
Prime Video
|
25 | |
| S04E08 | Just Add Karma |
February 1, 2019
Prime Video
|
25 | |
| S04E09 | Just Add Surprise |
February 1, 2019
Prime Video
|
25 | |
| S04E10 | Just Add Kelly |
February 1, 2019
Prime Video
|
25 | |
| S04E11 |
Just Add Goodbye
series finale
|
February 1, 2019
Prime Video
|
25 |
No artwork of this type.
No artwork of this type.
No artwork of this type.