Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What episode in the season was episode us17 in the series?

### Inputs:
table_name: table, columns: ['No. in series', 'No. in season', 'Family/families', 'Location(s)', 'Original air date']

### Response:
SELECT COUNT No. in season FROM table WHERE No. in series = US17