FallReset.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FallReset : MonoBehaviour
{
    public Transform resetPoint;
    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        if (transform.position.y < -30) transform.position = resetPoint.position;
    }
}