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

### Instruction:
What is the total number of episodes where alexa wyatt is the writer?

### Inputs:
table_name: table, columns: ['Season #', 'Series #', 'Title', 'Director(s)', 'Writer(s)', 'Original airdate']

### Response:
SELECT COUNT Series # FROM table WHERE Writer(s) = Alexa Wyatt